Attachment A

Final_Attachment A_fifra docket 502-id-102282.pdf

Requirements for Certified Applicators Using 1080 Collars for Livestock Protection

Attachment A

OMB: 2070-0074

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UEl iTE3 STATES €ti'/ i?O!iPii#TAL

PROTECTIOH

-.

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ih=.\lCy

3EFlzRE -YE J , ~ ) i I ~ I S P ~ J T C ?

In the /4atczr of

,)

Noticc of Hearing on the
Applications t 3 Use Sodium
il u o r o a c e ~ a t e(Covpound 10aO)
To Control Predators

,

FIFFW 9ocket No. 502
)\

i

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I n i t i a l Oecisicn

This i s a proceeding under Seciion 5 ( d ) of rhe Federal Iasec:icide,
Fungicide and Rodenti ci de Act, as amended ( 7 U. S . C . 136 ( d ) ) , t o recons7. c, e r

-

rne A d m i n i s t r ~ t o r ' sorder (P4 72-2, Harch 9 , 1 9 7 2 , 37 F?, 5713,
"arch 18, 1972) suspending and cancelling ihe r e g i s t r a t i o n s of sodium
f l uaroacezare (Cs~pound1086) for the control of pr2dacors .

The cr-oceodi na
4

was triggered by a p p i icacions i ~ regi
r s t r a t i o n o r erner2eccy sxempcicn dncer
Secs. 3 and 18 o f the Act, f i led by the i i s h and ' r i i l d l if. S e r . ~ i c eo f i h 2

U.S. Oepartinent of I n t e r i o r , and ihe S t a t e s of Xoneana, S o u t h Oakora and

2yornming.

-1

i

ne Administrator's Setowinaxion t o h o l d i nearing sn che

applications and the issues t o be csnsiderzd (Atxacbnenc A ) s r s s e t
i o r ~ hin ;he Xotice of Hearing, d a ~ e iUecember
December 7 , 1981 , a t 5 9 , 6 2 2 , e t s2q. ) .

:,

i9E:

(16 F?, l o . 2 3 2 ,

The issues t o be addressed aer.

expanded t o include smear posts as a delivery mechanism by n o t i c e , dace:!
March 3, 1982 ( 4 7 FR Eio. 4 7 , Piarch 10, 1982, a t 10,258).

This ~ r a c e ~ d i ni s jeing concucwd under
joverning h e a r i n ~ sunder

-

~ n 2
r2cer:i
8

3 2

Zules

9f

, Inszczicide, F ~ n ~ i ice : 3r,d ?>acen?'c: 2 2

Act ( 4 0 CF2 Part i o ~ )and i n ? a r t i c u l a r Sujparz D ;?,ereof.
?

?

?mctic2

*

I n acc~rdanc2

with h r a g r a p h 164.131 ( a ) , t n e Adni ni s r r a t o r rcvi evded fne appi f caci ons
f o r r e g i s t r a ~ i o n07 Compound 1080 and d e t n i n e d t h s i r?consideration of
the suspension and cancellation order kas warranted.
The cited secticn provides in par::
"The Administrator shall de12rnine thac such reconsideration
i s [warranted When he finds chat: ( i ) the appl icanc has
presmted sunstancia1 new evib2ncc 1,qhich aay ~ a t ~ ta:- iy
i
e f f e c t zhe ? r i o r cancellation o r 3us;ension or&r a n d which
was not avai l a b l e t o t h ? Adzi ni s f r a t o r , a t the tire he nade
h i s f i n a l c a n c e l l a t i o j . or suspensian d e t m i n a c i o n and ( 2 )
such evidencs could not, chrough the zxercise o f due
d i l i g e n c e , have been discavered by rhe p a r t i s s t a tne
canc2llation o r susgension proceeding p r i o r TO che issuance
of the f i n a l o r d e r . "
Paragraph 164.132(a) o f tne Subpar: O rules orovides t h a t ihe burden sf
proof in the hearing shall be o n the a ~ p l i c a n to r applicants who shall
proceed f i r s t .

This section f u r t h e r provides:

"The issues i n the hearing shall be whether: ( 1 ) s u b s t z n t i a l
new evidence e x i s t s and ( 2 ) such substantial new evidence
requires reversal o r modification of e x i s t i n g c a n c e i l a ~ i o n
or suspension order. The deternination of these issues s h a l l
be made taking i n t o account the human and environmental r i s k s
found by the Administrator in h i s ,canceiiation and suspension
determination and the accurnu?ative e f f e c t of a l l past a n d
present uses, including the requested use, and uses which may
reasonably be anticipated to occur i n the future as a r e s u l t
of grancing the requested reversal o r modification."
The ALJ ruled t h a t , although the i n i t i a l determination under
Paragraph 154.1 31 ( a ) as t o whether the evidence warrants reccnsi d e r a i i on

3

-

of the sus9ensi;n 2nd czncellation order must b$ 5ased on .vid?nc?
.yai!?h?,l

s t the tim? of the s c s ~ z n s i o narc! c ~ n c e : i ~ c ix~dne r

3f

not
7272,

,ssoc;a~; on arcd a f i i 1 ia=,-, Q - or s i m i l a r ; r s z n i z a ~ ~ a n s

--.,

t h e r e t o i n 36 s ~ a t e s ,the National %oolgrowers As;ocia:ion

and 3 ~ ~ 1 1 i a t 2 s

or organizations s i m i l a r thereto i n 13 s t z t e s , the Public Lznds Council
and the New Mexico Public Lands Council, vzrious individuals including
11
Dr. ',dalter soward- of the U n i v e r s i ~ ys f C a l i f o r n i a , the forecoing
par-ci es referred t o h e r s i n a f t e r a s dyomi ng , e t a1 . ; ;he S t a t e s of Montana
2nd South Dakota;

the Fish and :Ji!dlife Servic?; Rznchers Supply, Inc.

and The Toxi -Collar Company; Cr. Clai r E . T s r r i ? 1 ; h l e r i c a n Farm 3ureau
Federation, ~ n dFam 3ureaus in che S ~ a ~ eo fs Hontana, Yew Nexico,

-i exas,

Utah and Wyorni n g , h k r a i n a ~ t e rA i 3 F ; ~ i a tonai
i
Animal Damage Control

-

Assaci a t i on; Campbell Caunty Predatory i s s o c i a t i a n ; ; e x a i Cepartxenc ? f
Agricui tur:!;

ilew b\e;ii co Depart~iento f A ~ rcul
i t u r e ; Oef enders o f 'ii1 d l i i e ,

?lacionallIAucukon Soci ery , The Humane Society of the Uni t - d S t z r e s , The
Arneri can Humane J ~ s c caci
i on, Animal Protection I n s t i tuze o i h e r i ca ,
Nationa'l Parks and Conservation Associati on, The Animal We1 f a r e !ns;i t u t e ,
The Fund f o r Animals, )iatural Resources Defense Counci I , I ne S i e r r a
-7

Club, Yational Vi ldl i f e Corimi t t e e , Friends of :he E a r t h and Environmental
Defense Fund, herei naf tor referred

io

as Deienders of 'Ni I' d l i i e , e t

31

.

o r Defenders; National N i l d l i f e Federation, h e r e i n a f t e r NNF; friends of

Dr. Howard, a witness f o r Wyoming, e t a1 . in t h i s proceeding,
I/
f i led-an a p p l i c a t i o n , d a t e d December 17, 1981, f o r a n experimental us2
permit involving Compound 1080 in a Bait Delivery Unit (BOU) to control
depredating coyotes.

1

5

%

Ir.imalz, I n c . ; the United St3t.s

cap art sen^ o i l s r i c u l t u r e

n v i r c n n e n t a l P r a ~ e c t i o nAgency.
Hearings

oii

2nd

the

-L l
17

1

t h i s mattor c o m e n c ~ din Wasning~on, O.C. on narcn 35,

1982 and were subsequently held in San kngelo, -lexas and Denver, Cclorzdo,
3/
concluding in Washington, O . C . on A u g u s t 6, 1982.
Based on the e n t i r e record, including the proposed findings and
conclusions and b r i e f s subrnirted by the p a r t i e s , I find t h a t che f o l lcwing
-4/
f a c t s a r e established:

F i ndi nas o f Fact
8

Issue l ( a ) (Attachment A )

1.

Although d a m on sneep losses t o predaticn p r i o r t s 1972 a r e
fragmentary and inccrnplete, the most reasonable conclusion i s

I n a d d i t i o n t o b r i e f s f i l e d by a c t i v e p a r t i e s , amicus b r i e f s
2
vere iiled by the i n t e m a t i c n a l Asiociai/el1 4ncwn

h e r e i : d s cesn

i3

enchers.

P O S j ~i Q~ 53

I n t h e q e a t ra;ori:y

o f ins;znces

veri iy ~ r z d a ~ ii s~i ine s as recorxed

by ranchers, i: has Seen cetomined thac t h a cause o f loss ;qas
accuratzly reported.

The a s s e r t i o n i s mad2 t h a t a sheep or lamb

dying o f o t h e r causes might be scaven~edand thus incorrectly
i d e n t i f i e d a s a predator l o s s .

Xhile t h i s could happen i f , f o r

example an eagle or oiher carrion eaiing predator scaveng2d a
carcass, i t i s unlikely i n tho casa o f coyoses because cseth zarks
i n the t h r o a t , c h a r a c t e r i s t i c

3 i

a coycte k i ? 1 , 1 ~ 0 ~ 1be3 nisslng

Noreover, such s c a r ~ n g i n grtould be mcrs i i kely t o occur in che
winter o r colder months b e c ~ u s enost ,?recators prefar fresh meai i n
the s u m e r .

I t i i c l e a r thac i e hignes:

predrijnn losses io l m b s

occur i n rhe s u m e r .
Rancners c o n s c i e n t i o u s ~ yand in good faich s i r i v e
4

repor1 thei r I O S S ~ Si,ncluding 1 osses

?redatars.

I

However, I,o e c,A7 1A4 - a
4

\-

most ranchers do n o t maintain accurate records o i the cause of l o s s e s ,
t h e i r r e p o r t s o f predaticn 1 orses nay be uni ntentiona: ly i nflac-d
due t o f a u l t y memory o r "telescoping,"

incorrectly a ~ t r i b u c i n g

a loss or l o s s e s t o one period of t i m e , which, in f a c t occarrcd I n
another period.

This would seem t o be especially t r u e o f surveys

asking f o r data on losses f o r several previous years or f o r a f i s c a l
year.

A f i s c a l year may bear no r e l a t i o n s h i p t o the rancher's

production cycle, thus increasing the d i f f i c u l t y o f accurately
a t t r i b u t i n g losses t o the period when the loss occurred.

sheep and l a m b s l o s t t o ,/arious causzs.

k e i n d i c 5 ~ 2 dth2c his

report ~ r o v i d e dreiiab12 indications of geographical areas and types
of operations having the most predation and t h a t the t o t a l number
of producsrs affzcted was probably q u i t e r e a l i s t i c , b ~ a u ,s emost,
-

1

I

groducers wer2 alttarz o f whether c o y o t ~ swerz pr2ying o n t h e i r herds.
Gee,

2t

a l . s t a t e d , however, t h a t numbers of sheep and lambs l o s t to

coyctes and numbers o f procuc2rs w i t h d i f f s r e n t levels ci loss

must be considered mor2 caut'ously becaus2 t h e besree o f 9roducer
judgment i s higher. 13.

Under a71 che c i r c u m s t a n c ~ s ,the aost serious obstacle ca acc2ptizg

The Gee,

2;

a1 . r2sul t s i s the high level o f iamb losses a c t r i b u x - :

co pr2dation-

2

For exanplz, in ?xczss of $5 percznz of 'lamb losses1
I

t o a l l czuses i n levada were a t t r i b u t d t o predation, apprgximat2iy
5 9 percent in Colorado, approximat2ly 54 percen
5 6 percgnt

i n 'Ayorning.

in Utah 2nd approxirnaceiy

Because these losszs include pre-docking

losses and substantial numbers of lamb d e a ~ h sduring t h a t period
a r e au2 t o lambing complications, weather, disease, m a l n u t r i t i o n ,
e t c . , these high reported predation l o s s e s a r e d i f f i c u l t t o accept.
Moreover, Gee, e t a l . s t a t e t h a t while most of the large-scale
operators reported losses from l e s s than 5 percent t o more than 20
percznt, many sna11-scale producers had no predation problems a t
.-.

a l l , and t h a t 5,000 o r about one-tenth of the w e s t ' s sheep ranchers,
.I

r s p o r ~ o di ~ s i 2e x~c e e c i l n ~ 10 7erz2nt c f Izrnzs x r n .
ma: hi:n
11 .

-z r e S L - r e r e a 5y

prsda;;~n s

Combined sheep

216

1 ai:b

3

?:nor!ry

-

,

~i ; i

cl?a~

cf i r ~ ~ ~ > ~ s / ~ .

1 o s i e s i s a1 1 c i z s e s i n 15 :.ies'.?r-~ ;:a:es

have remained s t a b l e during rne 7eriod 1960-81, constiiur1,n3 8.9
percent of the January 1 inventory p l u s lamb crop d u r i i g the years
1960 t o and including 1971 and 9 . 0 percenr from the period 1972 t o
and including -1,981. i f lamb losses a r e separated from sheep : c s i e s ,
sheep losses ts a11 causes

jn

1 5 western jtaces have declined from

an average of 7 . 9 percenc during the period 1560-71 to an average o f
6.9 percent during the period 1972 to and including 1981 .

The

rec5rd w i l l not suppart a fjnding t h a t average p r e h t i a n losses i n
these s t a r e s i o sheep o r to sheep and lambs ccmoined have increased
sine? 1972.

Lamb losses l o a l l causes as a perceni of lamr c r o p

have increased from an average o F 10.G perceni dur-ing

in2

2erigd

1960-71 t o an average of 12.3 ?ercent during the period 1972 t o and
including 1981.

Wnile t h i s n i g h t support an inference chat iamb

losses t o predators o n an overall b a s i s have increased since 1972,
the record 'does n o t e s t a b l i s h t h a t t h i s i s so.

Lamb 10sies to

predators as a percent of l o s s e s t o a l l causes have not increased
since 1972.

In f a c c , lamb losses to predators appear t o have

decl ined s i nce 1978.

Individual producers have, hcwever , suffered

increassd predation l o s s e s since 1972 and f o r some producers i t i s
c l e a r t h a t predation i s a very s e r i o u s problem.

12

Ijsues i ( 5 ) a n d ( c )

i t could be i n f e r r e d thac c a t t l e l o s s e s t o predators were not

a ?roblem p r i o r t o 1972, predator l o s s e s c f calv?s have increased
since 1972.

Texas i s by f a r the l a r g e s t goat producing s t a t e a n d

r

the evidence supports the conclusion t h a t l o s s e s sf s o z t s t o
predarorz i n Texas have increased since 1972 and thar losses o f
goars t o predators as a p e r c a t o f losses t o a l l c3oszs hsve a l s o
increased

1972.

I t does q p e a y , however, t h a t ? c s s e s of gcats

t o predarors decl rnea in Texas i n 1981 .
Coyotss a r e by f a r the p r i n c i p l e caus;! o f preaaTor losses

13.

t3

lives-lock.

Foxes a n d / o r f e r a l doss Jay be s i g n i f i c a n t c a ~ s z sg f przdation

i s o l a t s d instances.

i 7

Whero predation i s causzd by " f s r a l i o g s " i t

i s usually packs of dornescic dogs wnich hav? s ~ r a y e dfrcm nearby
towns or communities .
Issue 2

-

Zfficacy

The use of 1030 in toxic c o l l a r s i s 1 i kely t o reduce predation in

14.

instances where sheep or goats a r e cjrazed in ienczd past9res.

-Ine
7

t o x i c c o l l a r i s unlikely t o reduce predation on open ranges because
of the d i f f i c u l t y o f t a r g e t i n g predator a t t a c k s to collared animals.
Compound 1080 i n s i n g l e - l e t h a l dose b a i t s (SLDs) has not been

1

u t i l i z e d f o r the control of predation i n the United S t a t e s .

Similar

b a i t s containing strychnine, r z f e r r e d t o as drop-baits, were
%

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extensively u t i l i z e d f o r t h a t purpose p r i o r t o 1972.

Because of the

concurrent use of strychnine b a i t s and 1080 large-bait s t a t i o n s , i t

.

-

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~nl l ~Li

21:2
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(3f
-,: ~ C. ~. ; . j = _ f ?t;y ~ - +~i . f b z r c-nj-~ol

con+,ain i n g 1 zSu zrz uszd

c-nc-rr?-,tl y :?/i'-,h

in Bri t i s n Ccl,;;;;bia f r ~ rt h e csntrgl

3f

Austrailia f o r the control o f dingoes.

:oyo n s ,

- i-.c

s o - c a : 'led

"Kansas Extension System" is, basi cal l y an educational and t r a i n i n g
s ~ ~ s t e1;;hercSy
z

r~fichei-s ai-e

L

-

~ d u g i l it

o handle predatlcn problems

on

t h e i r own.

I t i s n o t , however, ?n al'ernaf2 lri"zho0 of s r d 2 t o r

c o n t r o i , becaus2 i t i s c h i z f i y penning a x n i g n c t b d c r?sulzs i n i z w
pr2cation r a t s s in Kansas.

25.

Open range s i t u a t i o n s a r e grazing condi t i a n s under which- i t i s l e a s t
l i ke1y t h a t any current1 y avai 1zbl e rnethgd o i predator control w i 1 1

be conri s t e n t l

e f f e c t i v e and economical I y f e a s i b l e .
Issue 4 ( ( 1

23.

-

3eneii t s

The number of sheep in t h e Uniced S t a t z s has dzciin2d over the l a s t
f o r t y y e a r s , from a high o f 56,574,000 in 1 9 4 2
in 1 9 7 9 , increasing t o 13,176,OCG as

-

3f

t3 3

law o f 12,220,QOO

January 1 , 1982.

The deciine

i s a t t r i b u t a b l e to declining dernand f o r 1 a m ~and rnuxton ( p e r c a p i t a
consumpti o n bei ng approximatei y 1 . 5 pounds a?nual ly ) , a v a i 1 a b i 1 i t y ~f
s y n t h e t i c n a t e r i a1 s

3s

substi ts t e s f o r wool ( p e r czpi t a consunpci on

o f wool being approximateTy cne pound annually of wnich f i i t y

percznt i s imported), the f a c t t h a t r a i s i n g c a t t l e i s 1 e s s 1 abor
intensive than r a i s i n g s k e p and more a t t r a c t i v e opportunities being
The dec! ine cannot be a t t r i b u t e d s o l e l y or

avai l a b l e elsewhere.

even c h i e f l y t o gredation.

Approximately 80 percent of the sheep

in the United S t a t e s a r e raised in the 1 7 nost western of the 48
contiguous s t a t e s .

A1 though approximately 51 ,000 western farmers

and ranchers r a i s e sheep (1974 d a t a ) only 21 ,000 or 41 percent have
comercia1 operations of f i f t y o r more stock sheep.

These producers,

however, own nearly 93 percent o f a l l stock sheep in the regicn.
Large s c a l e producers w i t h a thousand o r more of stock sheep c o n s t i t u t e
only 6 percent of the producers, b u t a c c ~ u n tf o r 63 percent of the
region ' s stock sheep.

3C.

-

ix7ei-t t s t i i c c n y from witnesses f o r "is

cne m n g p i a n d i n :he :ies:sm

Jroponencs of t h e

U n i t e d S:aies

~PC::S~F~;~SR

r q u i r ? s ~ r z z i nb y~

catt12 sheep and goazi r a t h e r than by a s i n s l e species.

Grazing

c a t t l e , sheep and goats i n t h e proper combinations and ac s u i t a b l e
i n t e n s i t y not only increases the production of anixal product: p e r

acre, b u t tends t o maintain the carrying capacity of the land i n
tha-c sheep and g o a x can he1 p csniro! deeds 2nd brush ,' thus avoiding
the use of herbicides or e x p e n s i v ? ~ e c h a n i c a lx e ~ h c d sof c o n t r o l .

Because s h e e p and g o a s have zhe capacity t o turn ?asxur? and range

\teget;tion i n c o meat a n d ! f i b e r a r a r e l a t i v e l y 1oi.i cosc,

572

ri5ir;g

c o s t of ?nerg;/ i n recen-r: y e a r s has i,~il;lrovedthe ?r,snornic c:rr;peci;iveness o f sneep 2nd go2ts rzlatilre bo c ~ h e rmeax and oi' ~tlooi and
A

nonai r re1 azi v e to syniheri c ; .

-,
I

,

*

n i s may 2x91 a 1 n ,he r2c2nr in c ~ e a s e

i n s h e ~ pnumbers.
31.

Wj

m e s s e s f o r the proponents o f lO8O r q i s t r a t i an a1 5 0 t z s t i ii2d c h a t

areas s u i tab12 f o r t r e g r a z i n g of s h e e p and g o a t s Iwere n o t being

usilized f o r t h a t purpose because o f predation o r the f2ar thereof
t h a t was forcing t h e abandonment of many sheep o r goat o p e r a t i o n s .

These witnesses a s s e r t e d t h a t young people wer2 no loncjer e n w r i n g
the sheep or goat business because o f predation and t h a t excessive
predation was a f a c t o r i n l e n d i n g i n s t i c u t i o n s being unwilling t o
advanc? capita7 for such operations.

The r e s u l t of t h i s s i t u a t i o n

a s s e r t 2 a l y includes a l t e r a t i o n s in the economy, decreased importance
o f ? g r i c 8 ~ l + u rtc!
e + h ? e r ~ ? r n ? ?ass. 1 c!e:?ir?

ir 'rdust~4ez-~,,k~~cS

depend on and support t h e a ~ r i c u tls r a l secyor, a n d i o r c z d chang$s
in 1 i l f i n g conci t i o n s of rur31 fami l i ~ s . Yh; I ? ~r2ca:;on

conczrcs

sr? real and i n some instanc2r c l e ? r l j j u s ~ i f i e a ,i; i s cancluded
t h a t f a c t o r s l i s t a d in finding 29 r a ~ h e rthan 7rgda:ion

iire c h i s f l y

responsible f o r the decline in the number o f operators r a i s i n g sheep
and goats in a r g a s s u i t a b l e f o r t h a t purpose.
32.

!JSDA conducted a survey of f c m e r sheep produce

Utah and 'tlyoning.

;

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' n Colorado, , e x a s ,

Predation \,vas gi5ier; a s a s i c i f i c a n t f a c t o r i n

the decision t o discontinue she?? prcduction by f 3 m e r ?roazc2rs i n
each o f tne four s I a t e s , a1 though shorrag9 of good hired 1abor, lamb
and :vool prices and age of the okvner lrlero other1s i sni f i c a n t reasons.
Financial returns were frequently meager or nil 2nd the majority

gf

f o m e r producers in lrlyomi ng ,dere s u f f ~ t -ni q operazi ona 1 1 o s i e s , i . e . ,
not even a e e ~ i n gcash c o s t s , wnen :hey discontinued 3 r o d u c t i ~ n .

-,

I I I ~

number o f sheep praduczrs declified by 1 2 percent in 1973, The p a r
fol lowing r e s t r i c t i o n s on the u i e of t o x i c a n t s , the greatest , ? e r c ? n t a ~ e
of reduction since 1975.

This declin? was followed 5y f u r t h e r

declines of 5 percent in 1974 and 10 percent in 1375.

I n Colorado and

Texas Eore producers stopped production i n 1969 a n d 1970 than in other
years betwegn 1968 and 1974.

The biggest decline in number of producers

in Nyomi ng and Utah occurred i n 1969 and 1371 , r?s?ecti ve1,y.

Cecl i nes

in these four s t a t e s i n 1973 were not o u t o f 1 ine with the number of
producers discontinuing production i n other y e a r s .

I t i s concluded

t h a t although predation may have been a f a c t o r in producers discontinuing
sheep operations, such discontinuance cannot be r e l a i e d t o the-

-

suspension of the use of toxicants as a means of predator c o n t r o l .

-

have been ?srima-",

dc

$13 z i i 1 ien

5 year.

3as2d on ? s z i z a t e a c a i f

1 osses t o coyocos a f 0.4 percenx in I977 and 1977 pri c ~ , scacti?

producer losses have been s s t i n a t e d zt $20 m i l l i o n .

i t i s assertzd

t h a t t o t a l 2concmic losses t o producers would nearly d o u b l e i f 1980
p ~ i c 2 5were used and would nearly quadmple i f the higher range of
estirnatsd 1oss2s l,qas used.

T o t a l economic losses

73

?roducars frcm

coyow predation on.sheep a n d ca:ves i n 1980 hzve been esziinated so
be i n t h e range cf $75 t a S l i O illi ion.

-;he

l a t t e r figures ?rs 3?rncst

csrtainly f a r t o o h i c h .
34.

The USDA survey (Gee, et a1 . ) estimated chat sheep ?reducers l o s ~
$27 n i l i i o n to ? r e d a ~ o r s ,wizh cansuners l o s i n g an addition 510
s i l l i o n due co higher prices and reduced supply.

? ~ S S ~ i Sn

foregone

lamb s a l e s amcng t h e approximate 3,OCO ranchers who report26 lamb

losses to predators exceeding 10 p e r c e n t were estimated t o average
about $4,000.

Based on 1977 p r i c e s , USDI estimated t h a c sheep

producers l o s t $1 9 mil 1 i o n t o c o y o t e s and t h a t o t h e r producers gained
56 million because of higher p r i c e s caused by reduced supply for a
t o t a l net l o s s t o producers o; $1 3 mi 11 ion.

Texas sheep producers

a r e estimated t o h a v e l o s t $4,317,600 t o predators i n 1981 and goat
producers a r e estimated t o have l o s t $2,765,450 i n t h a t year.
Dr. Nielson e s t i m a h d d i r e c t income loss t o Utah sheep ranchers becween
$ 3 . 6 million a n d $5.6 million annually.

The Texas and Utah estimates

as appearing i n USOA's s t a t i s t i c s and make no allowances f o r pric2

chagses c a u s ~ d3y ;- q c r e a j ~ dsupply.
!

T+e 2ifsc:

! s t o 3vorszats

C C % ~

'

~ O S S ~ S .

35.

Whether an increase in supply of shes? and lamb would i n f a c t r z s u l t
i n a decrease i n price depends on ~ h es 2 n s i c i v i f y o f p r i c e t o the

quantity s o l d , which i s "Le.med p r i c e f l e x i bil i t y o r p r i c e e : a s t i c i t y

e f demand.

"Price f l e x i b i l i t y " i s che percent.age change i n p r i c e ;.rhich

will r e s u l c from a one perccnt change in the quanticy cffered f o r
s a l e , wni 1 2 "el a s t i c i ty o f dernand" i s bhz eercentage change i n q1 ~ n c tiy
L

purchased t h a t resul ti: frcm a

on2

p e r c z n t change i n p r i c e .

- 1

I

nere i s

evidence t h a t :he dernand f o r lamb i s i n e l a s t i c and thac i n view of the
f a c t t h a t only a minbrity o f producers s u f f e r gredation l o s s 2 s ,  <, , E - p
1

-

n

.

TL$: dt,,t: -pl*i..la
p

3-mav.

A
"

-

q LA.
U,L

refinement of mare s e n s i t i v e t e s t i n g methods, e . g . , gas chrornatogrdphy

svith e l e c t r o n captur-2 d 2 t ? c t j ~3~~ 6
,T~SSs ~ ? c ~ T c J I T , ~ ~ h
T :2/ ,~ 20r.zi7 ?d  , o u ~ b , cts Se che resul X f

c m t r a l nervous sysxm a'sorders,
56.

Tests with rats t r e a t e d with f l u o r o c i t r a z e have demonscrated zarked
kidney damage.

~ e s t swith r a t s wherein i l uoroci t r a t e was admini s tered

in drinking water in concentrations as low as 5 ppm f o r seven days
have a l s o shcwn mor?nologicaT damage to t s s c e s .

This t2st snowed

t h a t chere was some regeneraticn , a 1 chough recovery was n o t c m p l s t ? ,
a f t e r 21 days.

Seen shown

LO

i ntraperi :onedl
fatal

.

Rars given sub-lethal doses of f l u o r o c ~ t r a ~ have
:
grow ncm,al?y f o r seven conchs acd hen to survive an
4082-of 71 uoroci t r a t ? hi ch would normal ? y have been

T h i s indi catzs t h a t a c e r t a i n tolsrance f o r f l uoroci t r a c s

nay be develosed.

O ~ h e rstudies ' ~ a v eshown rhac r e ? e a x i sub-;e:ha!

doses o f ~ o n o f l u o r ~ a c c ~have
a c ~increas2d :he cclerance o f scme

l4

speci 2s , e . g . , go1 den 2agl2s , r a t s , nice 5 n d pcssi bl;/ r h e s ~ s-nonA?ys.
gepeatod sub-lethal doses o f inonofluorccitraie a i r n i n i s ~ ~ r oto
b dogs,
guinea p i g s , rabbirs and mallard ducks, however, have accumulated o:
lethal levels.

The reason more data i s n ' t a v a i l a b l e o n whether

f l u o r o a c e t a t e accumuia-ies in an animal i s because i t i s so t o x i c .
Issue 6

57.

-

Human Safety

Sodi urn monoil uorcscetate i s a white, odor1 e s s , pcwaery , f l uoro-crsanj c
s a l t s i m i l a r i n appearance t o f l o u r , powdered sugar o r baking powder..

I t i s e s s e n t i a l l y t a s t e l e s s having o n l y a mild, s a l t y , sour or vinegar

t a s t e t o indi,vidu;ls.

1: i s highly so:.~b:z in l&:t:r,

but reiicivsly

37

".

insoluble in o r g a n i c s o l v e n t 5 such as ierosene, ~ l c ~ b o zcs:one,
l,
, - .

i n anizal 2nd :ili<;<~~b:.. i2ts and c?;;S .

;OC:L.;;I

or

-r I ~SrZzce',ac? i z

absorbed t h r o u ~ ht h e cjascrointescinal t r a c t , t n r o u ~ hopen 'ijounds and

the pulwi nary epithel iurn ( t h e 1 :ni ng coverin; a i r passages in rhe
lungs).

I t i s not considered to be absorbable through i n t a c t s k i n .

Monofluoroacetate, in g e n e r a l , i s chemicaliy. s t a b l e due t o the
strength o f the carbonfluorine bond.
i n canines i s charact2rized.by

3

Scdiurn iluoroacetatp poisonin9

latency period from one-half hour

t o two hours a f t z r i n s e s c i c n , wnich i s r 2 l a c e d co the metabolic
process2s described pr?viousiy ( f i n d i n g 3 5 ) .

In humans the l a r e n c y

period may be as lonQ a s f i j ~ e$ours and' death o f any species i s
usually within 23 hours a f t e r ingestion.

58. Reported deazhs a c t r i b u t a b l ~t o 1080 5ave been in cgnnectior! 1,vizh
i t s us? as a rodenticide r a t n e r t h a n

2s

us2 as a predaciie.

-7

I

,rier-?

i s restimony that 1080 poisonings a r e difficult co diagnosz a n d t h a t

many poisonings a r e 1 i kely t o go unreported.

A 1 though t ~ wo i tnesszs

who a p p a r m t l y suffered adverse e f f e c ~ sfrom TO80 ~ o i s o n i n gt e s t i f i e d
a t the hearing, the preponderance o f the evidence e s t a b l i s h e s t h a t
individuals handling 1080 i n connection with the preparation of
b a i t s o r toxic c o l l a r s d o not s u f f e r i l l e f f e c t s provided proper
precautions are taken.
59.

R e l a t e d t o both environinental and human s a f e t y 'is t h e matter o f possi bie

misus e of Compound 1080.

There i s evidence t h a t i t was n o t possible

t o monitor o r control the a p p l i c a t i o n of strychnine drop b a i t s

and , i t

18

may be assams.j
G?

7 1280SLDs.

,

Aifficy: r ? z s t ~ c u l dze i.tcl;rred

ha-, sini 1 a r
-'

, sess r i s k s z r s real

.

,

I

I1-e us2.

ne deci s i c n r e r s i n , ncit*rever,

7 c

I

1 imi t s ~ h use
e
o f 1280 SLSs t o sovernmenr ernpi oyees and i z i s

considered t h a t t h i s r e s t r i c t i o n subscantially reauczs ch,e ? o s s i b i l i c y
of mi suse.

A1 though t h e record establ i shes chai here were r i o l a t i o n s

of regulations and p o l i c i e s concerning the placement and disposal
o f 1080 b a i t s t a t i o n s , i t a l s o e s t a b l i s h e s t h a t regulations and

pol i c i e s re1 d t ; ng- t o ,

i .g

. , coveri ng

o f strychni ne crcp-bsiii and

removal of 1 arge-oai ts from h ; ghi?r e l evations , wer? impracti ;a1 a n d
could not be f o l l owed in some i nstanc2s .

The use o f ' such 1 arge-bai

i s not, however, being approved by ;his i e c i sion.

rs

Becausa leverthe1e s s , f o r

i ndi vidual producers predaf i on renai ns a s i gni f i cant c2use of

l o s s , which a v a i l a b l e a1 t e r n a t i v e means o f ?rodator concr3l are
not c o n s i j t o n t l y e f i e c t i v e i n reducing ac c o s t s which a r e reasonable
and f e a s i b l e .

7.

Compound 1080 when used in l a r g e - b a i t s t a t i o n s as a means o f predator
control has not been shown t o acccmpl i s h i t s intended ?urpose,
t h a t i s , a reduction in area o r regional cgyote populations followed
by a reduction in predation l o s s e s .

A 1 t h o u g h no generalized reduction

i n the populations o f non-target species from the use of 1080 large-

b a i t s has been shown, the evidence does n o t e s t a b l i s h t h a t t h i s
conclusion i s applicable t o endangered s p e c i e s , wnich was
concern underlying the suspension and cancellation order.

3

major
The

burden of proof i n these respects i s c l e a r l y o n the a p p l i c a n t .

The

hazards o f 1080 l a r g e - b a i t s t o endangered o r threatened species a r e
clearly substantial.

In view thereof and in v i e w of the f a c t t h a t

sheep l o s s e s t o predators on an overall basis have not been shown

41
"i have increased rir,co 1 9 7 2 , i t i s conc?c;d2d t h a t t5,e risks d o not

c,ut>!zign .he b e r i n f i t s a n d ~ c dfii c a z ' 3 n ~i

;h2

-I

e-,

,?/L

2rcer

resp9cz io t n i s i;se o f Coinpound YO80 i s ncc reauired.

,di:i

Accard!ng;y,

the application f o r r e g i s t r a t i o n of Compound !C8O i n l a r g e - b a i t
s t a t i o n s w i 11 be di sni ssed.
8.

Although the use of Compound 1080 i n smear posts as a means of predator
control was not considered i n the 7972 suspension and cancellation
o r d e r , f o r a l l t h a t appears snear ?osts a r s a l o int2nded for <

1080 for ? r e l a t o r czntrol coverad b y che A6mini:tratar's

notic? (16

,Yarch 10, 1982). Consequently, t h i s delivery ~echanismmay o a t be
considera9d or the use tt7ereof authorized by t h i s d e c i s i ~ n .
10.

Substantial new evidence e x i s t s with respect t o the use o f Compound
1080 in i h 2 toxic c o l l a r and i n s i n g l e l e t h a l dos? (SLD) b a i t s as

means of ?redator control and modification o f :he 1972 order to
permit these uses of Compound 1080 for predator concrol i s required.

Because no party has argued t h a t the Adminjstrator's det2rmination
t h a t reconsideration of the 1972 suspension and cancellation order was

warranted and t o hold a public hearing in accordance with 40 CFR 164.131
was i m p r o p e r , i t i s n o t necessary t o address t h i s s u e s t i o n .
-

Although, as s t a t e d a t the o u t s e t of t h i s opinion, no p a r t of the
decision i s dependent upon the v a l i d i t y of the ALJ's ruling thar the d e c i s ' c n

.. .

order would be inade tipon t h e e n t i r z r2cord, xn; s n a t t z r s,+?rrants 3 e n t i . s ~ .
Counsel f o r ;?,A

have 3;t?rnpzzi

t a : c r p a r ~ ~ e c ~i ze
a l zvidence ?rgperly

admissible and f o r consideration i n chis prcceeding.

For ?xanpls,

w h i l e contending t h a t the p r i n c i p l e of f i n a l i t y precludes consideration

of pre-1972 evidenca conc3rning fundamental issues such as the e f f e c t i v e n e s s
of 7080, counssi s t a t e t h a t i t may he ? s p r o p r i a t e t o consider ?re-1972
evidence r e l a t e d t o sucn narrow issues as ;he gredaror loss rzt2s and
the s i z g o f t h e livestock induszry.

I t i r contznded t h a t the A c h i n i s z ~ ~ ~ o r ' s

deci sion i n the M-44 proceeding (FIFRA Cocket No. 382, Sept2mber 1 6 ,
1975), "L the 2 f f s c t that-s\ri dencs zvai 1ab1 e pr? or t o 1972 coui'd be
ccnsidered i n d e t e m i n i n g the avai l k b i l icy o f an antidot2 f o r scdium
cyanide, i s not precedent f a r io;:sl c z r a i i cn o f are-i 972 evi lencz , beczuse
the 1 9 7 2 finding chat there was na a n r i d o x was 2rrgneous and noc sdogortzd
I '

by Ihe record.

Csunsel arsue t h t ; t h l ~ruling was ? r a p e r , c i t i n g the r u l e

concerning an agency's inherent power to c o r r e c t i:;

nistakes.

9
- ,/
-

IL is

a s s e r t e d , however, t h a t an agency's power t o corroct i t s a i s i a k e s dces
not extend t o changing a basic decision or policy, e . g . , suspension and
cancel l a t i on of the use of 1080 as a ?radaci d e .

Under t h i s vie8,q the

more egregious the mistake, the l e s s ?ewer the agency has t o c o r r e c t i t .
Surely the Administrator has the a u t h o r i t y to inquirz i n t o a l i findines

While the absence of an e f f e c t i v e antidote i s aroncj the c r i t e r i a
9/
t h a t may t r i p a e r a Rebuttable Presurnotion Aqainst Registration ( R P A R ) in
accordance w ~ t h40 CFR-152.11, i t i s c l e a r t h a t the lack of a n a n t i d o t e i s
,
not in and of i t s e l f suf-iici?nt reason f o r e i t h e r denying an e x i s t i n g
application f o r registr-a tiion o r cancelling an e x i s t i n g r e g i s t r a t i o n .
Accordingly, i i e e x i s i e n ~ , * ora I d- i n o f ail a n t i d o t e i; not 2 ;;;ci2?
or
control1 ing finding d n d the decision in the M-44 proceeding would a i m o s ~
c a r t a i n l y have been t h e !oreover, by focusing on the "newly 2iscovered

evidence" requirement o f 164.131 (a), which is the requirement t o hold a
hearing , i nsuiii ci ent a t t e n ~ on
i i 5 given to the 1 anguage of 1 5 d . 7 32 (a)
providrng in pertinen: ?arr "The det~rninationof these ijsiies ;hal!

te

iilaae taking in10 account the human and envircnrnenxal risks found by t h e
Adrninistraior in his cancGllation or suspensjon deterninaticn and rhe
cumul ati ve eiiect of a1 l oast and presenz ~ s e ,s incl udi ng t h e requested
--/-

U S ~ ,* * - .

I'

(emphasis suopl id). The cxrnulaiive e f f e c t of ai: ~ a s t

and present lses can nardiy b? properly iddressed by

1

r i ~ i dlim~tarfcn

concerning evidence available only since 1972.
Counsel's concern that scarce agency r2sources ?/ill be ,vastld
in r2litigating issues previously litigated and detemined is understandable,
but unwarranted. Since the issuance o f the suspension and cancellation
order in 1972, the Agency has previously denied applications for registration
o f 1080 and it is clear that applications deemed not meritorious may be

deniee i n accordance with 40 CFR 164.131 without a public hearing. This
provides ample authority to preclude the necessity of holding a p u b l i c
hearing where substantial new evidence which may materially effect :he
prior suspension or cancellation order in accordance with the cited
s e c t i o n has n o t b ~ : n subrpi t t o d .

Y ~ r - r o o ~:./en
,
if a ;r;bl< h e a r i n g i s

granted, the Administrator controls the issues to be adjudicated therein

accordant?

;qj

:h 49 CF?

7

I

a4.131 ( c j and h z s
F

the ro-opening of i s s ~ e scsnsi2erza

1

p r i o r proceedi ngs.

,

~3

7

trip i e

,.
. .
a ; screc;on

i3

3rPc r uae
7

,

nav? been ? r c c e r i y bdetz.miced i n
8

For 2xamp12, the ,Admi n i s c r a t o r night have i ini'2c

the issues t o 1G80 delivery mechanisxs n o t ccnsidersd in the I 9 7 2 o r d e r ,
b u t appears to have chos2n instead t h a t a1 1 issues i n ccnnection w i t h

the use o f 1080 as a method of predator control would be adjudicated.
.

L

The Adininii~.ratorshould not and cannor be rlqu'r-?d

ro isnore the

f a c t t h a t a1 though the 1972 order misht have been contzsted i n administratjve
or judicial proceedings, no such cancest was i n s t i t u t d , a n d c h a t fjndings
suppcrti ng the 1372 ordsr rema i n ni ghl y contr.oversi a,1 ,

tinder these

circumstances, r i g i d p r i n ~ i p l s so f f i n a l it y appropriat2 f s r t ? e c a u r t s
a r e n o t appl i c a b l e and i nasnuch as t h e Administrator *defer7ined t h a t a1 1

issuns b e a r i n g o n 'fie I972 order wctild be adjudicated n e ~ e i n ,t,ye
,4drrii,ni;traior and the ALJ may, a f t e r evidence mee-cing :he

srl ria o f

I

154.131 ( a ) has been presented cn the record, and consi s t s n t with 10 CF?
164.132, appropriately consider the e n t i re record in determining whether
reversal or modification of the 1972 order i s required.

32 t h a t as i c

may, the 1080 delivery systems authorized herein, the toxic c o l l a r and

SLD b a i t s , were not considered i n the 1 9 7 2 order and were beyond the

scope of t h a t proceeding.

Accordingly, there can be no question, b u t
I

t h a t evidence whether pre- o r post-1972 i s properly f o r consideration.

I t has been contended t h a t the testimony of Nr. Harry Loats, a
witness f o r USDA who sponsored a mathematical model projecting the

? f f z c t i v e n e s s of Compound 1080 l a r g ? 5ai: i t a x i o n s in retucing p r z d a ~ o r
iosszs o f s ? e $ ? 2nd ?ifer,ts o n non-carset
data f r o m the

LS;!

o f such s:acions

l d l i f e ~ c p ual ~ons
i bas?< sn

i n '!liycming during t h e y.ar

1975-7'7,

should n o t have bean admitted o r i f properly adnitczd, should not be
g i v e n any weight, because the model was not produced f o r use by counsel
.

, i n cross-exani nation.

Rr. Loazs ' testimony has n o t been found t o be

persuasive f o r reasons, among o t h e r s , t h a t the model f a i l e d t o cgnsider
i m i g r a x i o n of coyotes, possible " b a i t shyness" and assumed :ha:
resource base renatned f i x s d .

she

The objections, howevsr, a r e rejected a s

lacking i n merit 2ssential l y f o r the reasons s ? t f a r 3 i n the USOA ? e p l j
1 o/
3 r i e i , thac i s , counsel had access to Texas A&?! Ilniverslty (TRNU)'and other data u p o n which the model was based, b u t f a i l e d
sucn d a t a .

f3

'mke use of

Couns21 object2d to h a v i n g the analysis run and dis?layed on

The n i c r o c ~ m p u ~ 2presenx
r
i n the hearing room and a r e no:

. .
i n a 20s; ::cn

tc. complain i i; such a showing n i g h t h a l ~ e~hrown addi t i 2 n a l 1 i gn?: cn
operation of rhe model and s u g e s t 2 d additional questions f o r c r o s s -

exami nation.

Moreover, carefu 1 exami nati on of the transc7.i p t rp_vea1 5

t h a t a1 though ?lr. Loats did s t a t e t h a t the model (computer codes) das
considered t o be proprietary, he did not f l a t l y refuse t o producs i t ,
b u t s t a t e d t h a t he would have to consider the matter.

I t appears c h a t

Mr. Loats d i d n o t f u l l y understand t h e nature of a p r o ~ e c t i v eorder t h a t
m i g h t have been i s s u e d by t h e ALJ i n order t o p r o t e c t the data from

unauthorized d i s c l o s u r e .

In any event, the matter was n o t pursued by

counsel and nay not now be used a s a basis f o r objecting t o i4r. Loats'

! O / USE!, assert: t k t t h e TAXU d a t a were avai iabie to counsel f o r
EPA and Defenders as e a r l y a s April 1982.

,

The
as

3

rjenc2

e1,j

2 jtsbi

i shes t h a t ~~cmoo!,~nfl
1 sZ0

,

ar;e-Ga?

. cs a r ? intended

.
f r c n l,vn:ih
i t ir

general coyota jopuiatisn iuporession 'ec!?nl;ce

,

. tne
,.
assuned that oenefi ts in
f o m of r ~ d i l c t i ~ ni sn ?redation i o s s ? ~1,4ii1
,

flow.

I

Wyoming, the applicant f o r regi s t r z t i o n of 1080 large-bai i s , has

not established thac use of such b a i t s reduces coyotz populations over
l a r g e areas o r t h z t reducrions in ?redator losses o f livestock r e s u l t
from such use.

In s h o r t , the effecriveness o i 1020 large-baits

predaxor conrrol technique has not been pstablished.

3s

a

This being so and

the r i s k s t o &L l e a s t endangered and threatened specizs frcm such uses
not having been shown t o have been overest~mated i n 1 2 7 2 , t h e applicanr
has not met i z s burden of-proving t h a t the benefi Ti outweigh' %e r i s k s .

1l /
-

This concl,usicn i s buttressed by che f a c t thac overall losses ~i
sheep
and lambs t o ? r e c a ~ o r shave n o t be5n shown l o have incrersed since 1972.
Accordingly, nodification of the 1972 order with respect za 1C60 1zr:eb a i t s i s noc required

2nd

m e application f o r tne r e g i s t r z t i o n of 1080

in large-bai t s will be dismissed.
Different considerations apply t o the us2 c f lQ80 i n toxic c o l l a r s
and in single-lethal Cose (SLD) b a i t s .

Toxic c o l l a r s are c l e a r l y f o r

rhe rsmoval of p a r r i c u l a r de?rsdaiing coyotes and fox25 and the f i n d j n g i
herein e s t a b l i s h t h a t 1080 in the toxic c o l l a r can be used iichbuc
unreasonable r i s k s t o health and the environment.

If scatt2red or

spread over wide a r e a s , 1C80 in SLD b a i t s might also be used as a general
coyote population suppression technique.
objections as 1080 i n l a r g e - b a i t s ,

Such use i s open to the same
i t s effectiveness has not been

11/ I t i s a well established principle t h a t where ihe evidence does
n o t pKponderate i n favor of one c o n c i u s i u r ~iii a n . ths p a i t j : h;vl-:
the burden of proof on t h a t issue cannot p r e v a i l .

?roved.

The l i n ~ x e duse of 1080 in Si3 b a i t s auchorizzd her2ir: i s c a s z z

2 n x s x ; c c r , j . :il2:

and scsncs can

sk:n

1

.

:31cs

-

22 S ~ T S~
C
F

L

'

~ s z d: n : 2 n J c n c ~ i : n

isprsc+iz:?

: v ei n r?.r,o\ii ng parxi c a l.r

; ~ i t h o u xundue r i s k s t o non-target, species.

!L

;sr-.ls

depredaci i;g c3yc-,ss

i s concluded r,hat the

hazards o f lC80 in toxic c o l l a r s and SLD b a i t s as authorized herein a r e
s u f f i c i e n t l y minimal

hat broad prohibitions on t h e i r use + t h i n

range o f endansered species a r e not required.

the

The r e s u l t ~,vould,o c

course, be d i f f e r e n t , i f , f o r ~xarnple, iE was shown thaz miangered
species such as the

Sdn

Joaquin k i t

f3x

( ~ e r 2in the ar2a and t h a t t h e y

m i g h t a t t a c k collared livestock o r be a t t r a c ~ e dby scnnTs designed f o r

12/
co~yotes.

-

For a l l t h a t appears, us2 of lC8O i n the sxear

POST

i s intended as

a general coyote pogulazion ruppressicn x c i ? n i q i i e 2nd chis 2 p p l i c a c i o n
i s being disrnisszd f o r the same reason as the appiicatjon f o r us? o f
1080 i n l a r g e - b a i t s , i . e . , i t has not been scewn t o be sffeczive

fqr

the

intended purposz.
Nyorning, e t a1 . have contended t h a t the evi'dence i s sufficient to
r e g i s t g r t h e b a i t delivery u n i t (BDU) tzsted by J r . Powarc
supra) as a means of ?redator c o n ~ r o ,l

( 7 0 1
~,

1: i s iqell s e t t l e d , however,

t h a t the issues in a suspension o r cancellaxion proc2eding may not be
expanded t o include us?s or r e s t r i c t i o n s not proposed i n the notice
issued by the Administrator.

Shell Oil Carn~anv,et al.,
---

F I F 4 A Docket

Nos. 401, e t a1 . (Decision on I n t e r l o c u t o r y Appeal, April 9 , 1 9 7 9 ) .

12/ Because Executive Order No. 1 1643, February 8 , 1972 (37 FR 2 8 7 5 ) )
p r o h i E t i n g the use of toxicants on Federal lands f o r predator control has
been revoked ( 4 7 FR No. 20, a t 4223, January 27: 1982), no ~ r o h i b i c i = n
of the use o f t o x i c c o l l a r s and SLD b a i t s a s authorized herein o n Federal
lands i s being imposed.

18
The r3t;onale f o r 13i s decision i s :Sac

Adninis:ra;or

u n d 3 r : k e s t a c u z e g n l y :he

or his d e ; ? s a t e can i s s u e a notjce of

suspend and chaz such a notice neczssarily
f o r che conduct of

he hearing.

~

2

iflt2flt

t o ~ 2 n ~ 2G ri

che
~
5sczndard of r2hvance

7-1

i n e i n s t a n t hearins i s being conduct?d

under Section 6 of che Act and the sane reasoning i s a p p l i c a b l e .

Accordingly,

the ALJ has no auihori t y t o d i r e c t t h a c the BDG be registered as a means
of predazor c o n ~ r o l .
The use r e s t r i c ~ i o n sf o r 1080 i n SLD baics imposed herein bear

l i t t l ? re1 a t i onshi p t o chos2 proposed by ;he appl i c a n t s .

S t r i ngent

l i m i ~ a t i o n sara being placcd o n aL I s ~ ~ c t o r y
o f i cs c c s z or because o f j i n j t l t j c n s
on i t s us? 3i!e t o c h a r a c t e r i s t i c s o= t $ e control method, .

!,ltih

I

,

- ?

'

Nhat a r e the n a t i o n a l , r e g i o n a l , 2nd local e f f e c t s o f predation on
the livestock industry and the general economy?
'

5.

What impact would the avai labi 1 i ty of 1380 have on che p r o f i t s s f
individual ranchers and the 1 ivestock i n d u s t r y , as a ldhole?
Environmental Safety
Whether a v a i l a b l e data , i n d i c a t ~t h a t use o i lSSO i n ~ s x ' c c o l l a r s
and/or SLD b a i t s wculd be 1 i k e l y t o r9sul t i n lower direcx or indi r s c t
exposur? to non-tarcyet l,.ii 1 dl i f ? than resul ted frcm us2 of 1 C8O l arcjebait stations.
'dhether a v a i l a b l e data i n d i c a t e t h a t the r i s k of primary andjor
secondary poi soning was overestimated i n 1972.

6.

Human S a i s t y '
'Ahether U S ? o f 1380 in toxic c o l l a r s , SL3 b a i t s , and/or larrjeb a i t s t a t i o n s i s l i k e l y to r e s u l t in human injury or dea;h.
1,dhether an a n t i d o t e and/or medical t r e a t x e n ~s x i s t s which e f f 2 c t i c / e l y
caun t z r a c t s the e f f e c t s of 1080 poi soni n g .

7.

Use R e s t r i c t i o n s

Whether prohibition of the use o f 1C80 in the range of c e r t a i n
protected and/cr endangered s p e c i e s , e . g . , ihe San Joaquin k i t f o x
or Cal i forni a . Condor, would e f f e c t i v e l y reduce o r el imi nato the r i s k s
to t h o 5 2 species, and what e f f e c t would such a prohibition have:

( a ) in those areas
(b)

on the 1 ivestock industry as a whole

Whether r e s t r i c t ' i o n of the use or' 1080 t o trained Government employees
or c e r t i f i e d a p p l i c a t o r s would reduce human and environmental r i s k s
w i thout s u b s t a n t i a l l y reducing benefits .
Whether a requi rernent iha t 1 ivestock predation be veri i i e d by s t a t e
employees before use of 1080 was authorized would l i m i t use of 1080
t o sit!!ations i n which i t was most l i k e l y t o ppqvide s i g n i f ' c z n t
benef i t s .

Whetner users inould be required :a post warnings i n me v i c i n i t y
of SLD b & i ts and iarcje-bait stations.
W h e t h e r users snould b e required t o check i o x l c c o l l a r s , SLD
b a i x i , a n d b a i t s t a t i o n s periodical 1y.
Vherher u s e r s s h o u l d be r e q u i r e d t o keep rocords o f rhei r use of
1080, and i i so, wnac records.
Yhether o t h e r raszrictions waul a reduce r i s k s wi thcut i u b s t a n ~ ; a i? y
reuuc'ng o e ~ e i2is .

Fttacnment 8

1.

a

r';

TI.

Przdaci on Loss Rates
A.

Sheep Losses Prior t o 1972

3.

Sheep Losses After 1972

C.

Caczle LOSSBS

0.

Goat Losses

Efficacy
A.

,

-

~ o x i cCollars

'

B.

Single-12thaI-Dos2 3 a i ~ s(SLZs) -

C.

Large-aai t S t a t i 3ns

A.

Uenning, Shooting,

8.

;1-44

C.

Aversi ve Conditioning

D.

R e p r ~ d u c t i v eI n h i b i t o r s

i.

Chemical R e p e l l a n ~ s

F.

Husbandry Practices
(1 )

Guard Dogs

(2)

Shed Lambing

(3)

Addi tional Herders

(4)

Fencing

,5j

Pmin:7;

I

G.

-I r3pping,

or > r u ~ l l i ? ~

Mechanical Repel 1 a n t s

Snaring

\1 .

Environmental Safety
A.

Exposure'
(1)

8.

131

-

13.1

135
138

-

136
123

Risks o f Primary and Seccndary P o i s o n i n g
(1)

VI.

Toxic Collars

Primary-

aurnan S a f e t y
i

A.

Physical P r d p e r c i e s o f 1033 and Stinan i n j u r i e s

8.

Misuse

C.

~ n t i d o t eand Treatment

VII.

Use R e s t r i c t i o n s

VIII.

Smear Post

-

- l5i

Attachment C
136

-

157

I

i

,

The Ca: n Cornmi i ~ e e ,h e r 2 i n a i t e r i a i n o r Cal n , e i a1 . , :./nose reocrz
was ihe primary basis f o r the 1372 order suspending and cancelling

r e g i s t r a t i o n s o? Compouna lO8O f o r tne control of predators, referred

t o a study conducted by. Utah S t a t e Ilni:ler;icy,

hereinai~sr'the

I

1

Niel sen-Curie study, on

3

The ranchers were asked

t3

23 Fsrcen:

sdrno!

n of &;ah ' s shees ranchers.

?stiqa;s t k i r i 3 ~ a ilosses 3ur:ng 122

Fiscal Year 1963-69 and t a repor- ihe ounaer
predators.

3f

shes? i a s i

;3

The r e s u l t showed an 3verage ?redator loss o f 61

i w e s and lambs per i;000 ewes, ' of which d p n r o x i ~ a t e i y? / I :verz co

1 ambs.

O a ~ ao n he 1 amb crop p e r 1 ,CCO swes :.ier- no, ita:ed,

b ~ i

d e ~ e n d i n go n t!?at l a ~ a ,jredator lssies Ners 2 Terceni of ;ne ewes,

4 t o 5 percrnr o f the 'anbs and ~ e r ~ a 3s sserceni s f the b t a l
flocks.

Coyotes were reporteo 2s aeing rhe m;or cius2 o i p r ? d i t s r

1 oss.
2.

Cain, e t a l . a l s o referred to estimates c o m p i l e d by izhe Oirector of
the Division of Wildlife Servic2s f o r the S t a t e of U t a h during the
period of the s a r l y 1040's t o 1965, r l f e r r e d t o as the Owen Xorse
estimates.

These estimates were cornpi 1 ed from yearly reports

furnished by a leading sheep rancher i n each ccunty, who i n turn
contacted sheepmen in h i s county f o r data on sheep l o s s e s .

Cata

reported were in terns of actual numbers o f sheep l o s t and n o t

1/
Pursuant
~ n n n c h;
~/ ~?c;,
j
vn"aUr tu.C7J,

t o a motion f i l e d by counsel f o r E P A , which vas n o t
n<44~l
; 3u1 I I V L
-; - +L- l a~- - A C I I u;- - L I I ~r e ~ u r aupon wnich
the 1972 suspension and cancellation order was based.
rr---

,

u l

I

I L

8

m n A ; - ~
ILS.

L L -

1/
-

3ercentases.

3y civicing the to<;:

Cain arrived a: j e r c s n t a ~ ? s07

flumS2r o f sheep i n the s t a c 2 as

1 3 5 5 2 s ;3

jredat'cn ; n the range o f

7-10 percent in t h 2 l a t 2 1923's and 1 0 ~ ~ o2f s 2 t o
t h a t time.

Cain, e t a1

.

4

percent sinc3

observed t h a t t h i s r e s u l t was in clos?

agreement with the Ni el sen-Curl e Study f o r 1969.
3.

The Division of N i l d l i f e Services ccmpiied loss d a t a , referrpd to
as the Reynoids and 2ust.d

S u m a r i ? ~ ,as reported by the Crcp a n d

Livestock Reporti n~ Services f o r the 5 tazes o f Yontana , ',!/yomin g ,
Colorado and Tzxas.

I n :he courss of regular annual surveys,

conducted by mai i questf onnai r e , stockmen i n, the 1 i sted s t a t e s ;vere
asked t o regort the numbers of sheep l o s t t o ?r:dacors
years 1366 to 1969.

during che

Losszs reported as a gercentage o f a l l sheep

and 1 arnbs ranged from '3.6 percznt i n Texas i n 1967 to 7.9 ?ercent
in Wyoming i n 1969.

Extrapolating t h i s data t o 1 6 wesi2rn

S Y ~ W S ,

Reynolds and Gustad concluded t h a t predators were responsible f o r
24.8 percent of a l l sheep and lamb deaths o r 5 . 3 9ercent of the

t o t a l i nventory .
4.

Cain, e t a l . a l s a had a v a i l a b l e USGA Forest Service estimates which
a r e based on records maintained by d i s t r i c t rangers as t o the
numbers o f livestock placed in national f o r e s t s a t the beginning o f
each grazing season and the number removed a t the end of the each
season.

T h e difference between the two figures c o n s t i t u t e s the

I

including those t o predators.

R e s u l k , c : z p i ~ c d f o r Utah > f a t i g n a i

Forests, showed losses t c p r z d a ~ c r sranging beF,veen 0 . 4 and 1 .Q 2ercznt
o f herds grazed.

Secause rhe grazing s2ason

Oi7

national f o r e s t s

1 as"L on1 y two t o t h r e ~ ronths.
,
o f the year a n d because 1 osses during
1

I

c1th2r seasons, 3speci a 1 7:j : v i n x r , rihich nay Se subsr,antl a i a r e n o t
r .

i n c i l ~ d e d ,Cain concluded c h a t thesz ~ : ? u r e sagrred r3asonabiy d e l l

w i ~ nthe Pli?l sen-Cilr'le a c a Owen Yorse estimat2s f o r the z n t i r e

year.
3.

Cain, e t 3 1 . a l s a had a?tai!abl2 dam ,on, inventorfes of sheep

2s

of January 1 of sach y e z r , lamb c r o p and t o ~ a llosses to a!l

causes a s raporr,sd b y USZA's Stzsistical ,?e?orting Serxlice ( 3 2 s ) .
These d a m a r e compiled tnrougn nail q u e s z i c n n a i r s 2nd do noc
anernpt t o br~akdown l s s s e s t o cause.

! c t z ! losses thus repcrc2d

varied betwe n 9 a n d 1 1 9ercent i n Utah (individual years ranging

between 7 . 9 and 1 4 . 9 ) ; between 7 and 8 percznt i n Idaho ( 6 . 1 and 16.1
for e x t r e m e s ) ; and between 8 and 9 percent in Wyoming ( 5 . 4 and 13.5 f o r
3

the extremes) during t h e same period.

Cain, e t a1 , recarded thes?

t o t a l reported 1osses as s e t t i n g a cei 1 ing o n , predation 1 asses . 3as2d

on an analysis o f the Nielsen-Curle d a t a , the committee concluded t k a t
n o s t operators experienced ininor losses i n z2ms of percenIages ( w i t h

80 percent o f t h e t o t a l f a l l i n g i n the two lowest c l a s s e s ) , w h i l e only

a small f r a c t i o n of the operators experienced heavy l o s s e s .

=, a l . , z u t i l o r z i a:]

,-I

3 r r ~ i c l e" ? r ? d a t s r L C S ~ ~ I::S 2ne

-r ~ o c ko f
7

Shes?

and Goats ," ,dhich re?ort?d o n losses co flocks ~ a i n t a i n e doy the
Texas Agricultural fxperiment S t a t i o n .

Sheep losses t o p r z d a ~ o r s

during the f i ve-year period 1967 through 1971 averaged approximatel y
3 - 4 percenx of the inventory, while losses co a1 1 causes averaced

9.27 percent o f the inventory.

-..,

lnese sercentages include loss2s co

1 ainbs , which !+/ereconsidered essi?ni-,ially post-marki n g a s 1 amoi ng
.

occurred i n c ~ n f i n e s e n t . ?redator

1 0 8 ~ 2as~

a percent of a11 ;asses

averaged 36.30 percenx, the highest being Q2.14 3ercent in 1577 ana

rn rne . v ? c z c
>

a;pdrenti;i

3 r ~ c u : a r c s u l 2 i- 7- 3 r i .

,

- -

n o t dsed i n r n l s a r z a ~ r i c r s

1 1

n

I Y , ~ ,

1--

1

I

,

:zs

sir;,,-;nlne

sadjum clianiie, tne l a ~ t e ri~the royot. gei-ec, piere .red.

i.

-; n e
9

f o r q o i n g makes !t c l e a r c h a t dara o n pre-1372 prodaiion lcsses

t o sheep a r e f r a ~ n e n t a r yand t h a t no sne loss f i g u r e i s pcssible.

-he

m o s t reasonable conclusion, however, is t h a t predation 1 0 ~ ~ 2 s
' >

1

o f sheep a r e somewhere between 3 . 6 and 7.J oercsnt
:he

?eynolls and Gustad surrmariss.

Cain,

2t

reporred i n

a1 . had questioned t h a

Reynolds and Gustad d a t a because i t iiilplied t h z t precs:!sn

:vas a iilajar

causa of totas1 l o s s e s , which )was quesiioned, becruse o f ihe s ~ a r i s t i c . 1
d i s ~ r i c u t i o nof predztion l o s s e s , i . e . , only a small ~r3pcortionof
i h e producers suffering major predaiian 1 a s s e s .

8.

I n 1975, a m i l questionnaire to determine sheep and iano

:asses

t o gredatars in 15 western s t ? .es i n 197a !,vas csnducted by the
S t a t i s t i c a l &porting Service of the U . S . Department of Agricul ture
(Agricul t u r a l Econorni c Report No. 369, l p r i 1 1977, herei a a f t o r
Gee, e t a1 . ) . Of 28,000 questionnaires mailed, responses were
received from 8,910 farmers and ranchers o r 32 percant representing

I

a l l s i z 3 s 2 n d tySas s f

52-9

si- 1 5 I,l;eszrn

-$ 3 i n s ~ i r ere1 i a b i l ' : I ,

ST~:~S.

n o t rsspondincj was c3n:acced

nser?:icns

and z l i cjmgraph?caI 2 7 2 3 s
3 safin;?

l ~ ':;:CS~
f

by v ~ al i?.na personal i n e r v i s l , ~ . -,i n ?. i

was rhe nosL comprehensive sGrvey of s h e ~ pand ianb i o s s z s t o

predation e v z t conductzd.

P r e d a t i o n , p r i n c i p a l l y by the coyote, was

t h e major cause a i sheep and lamb deaths during 1974, l ~ s s e s
a t t r i b u t d t o coygxes numbering 728,000 lambs and 229,COO adulc
sheep, r e p r e s m t i n g a ~ h i r dof the t o t s 1 lamb deachs
and a f a u r r h o f t n e a d u l r sfieey dea-ths.

t3

a l l causes

Lanos were attacked m c h

more than a d u l t sheep, o v e r a l l ios3es t o coyot2s b e i n g 8 percen1 of
the lambs and 2 - 3 DePcent a? t h e sheep.

L o s s r a t z s of lambs and

sheep t o coyoces were h i g h e s t i n s t a t e s wizh pubiic range g r a z i n g
and mountaincus t 2 r r z i n ?/hi1 2 ccmparacively few deaths frcm cgyotes
were incurred in the S c a t 2 s o-f Kansas, >lebraska and ?/ortn 2nd Souc!~
I
I
I

Dakota.

Predation l o s s e s o t h e r than t o coyo-ces, c c n s ~ i : u z x i 2 . 3

percent of lambs and 0 . 9 perc2nt of sheep.
9.

Gee, e t a1 , r s p c r t 2 d t h a t lambs l o s t -co p r e d a t o r s c o n s t i tuted
1 1 .4 percent of lambs born and 4 9 . 3 qercent of l o s s e s of lambs t o
a1 1 c a u s e s .

Adul t sheep l o s t t o ? r e d a t e r s t o t a l e d 3 :4 percent of

t h e January 1 inventory and c o n s t i t u t e d approximately 33 percent o f

,qere

2 . 5 percent i n 1966, 2 . 2 percent in 1970 and 3 . 3 percen; in 1971.

The comparable Ses

I

lcjure for a d u l t sheep 1orc t o p r e d a t o r s

f o r the y e a r 197a i n Colorado was 3.5 p e r c o n t .

1974, t h e 1 a " L ~ rbased sn Gee,

?'i

31.

i:.ie l o s s e s a t ~ r i b u t e czo
m

8

predation iiere 2.6 perc2nt o f inventory i n 197Q-71 and 2 . 8 ?ercznc
in 1972-73.

These f i g u r e s a r e t o be compared with t h e 1 . 8 p e r c e n t

of s t o c k sheep l o s t t o coyotes i n Idaho in 1974 ( 2 . 0 percent l o s c t o
p r e d a t o r s ) reported by Ges,
d a t a a r e based

2n

2t

a1 . The 1970-71 and 1972-73 l o s s

a study of range jhee? o p e r a I o r s , which ?rescnably

would have higher l o s s r a t e s tgan farm flock operations.
12.

Lambs l o s t t o p r e d a t c r z i n Xontana a s co a percgnt of lambs born
cotaledi 7.3 percent In 1968, 5.1 percent i n 1969 and 17.5 percent i n
1974.

The rnajori ty o f ttle l o s s e s ( 1 3 . 3 p e r c ~ c t )i n 1974 were t a

coyotes.

A d u l t sheep l o s t zo predators in >loncana f o r ~ h eabove

year; a s a percenTage of stock sheep on hand as

3f

January 1

c o n s t i t u t e d 1 . 5 percent in 1968, 1 . 5 j e r c e n r in 1969 and 6 perc2nc
i n 1974.

All of t h e s e f i g u r e s a?pear i n G?e, ec a l . , the source

of t h e l o s s co predators f o r 1968 and 1969 being the Nontana Crop
and L i vestgck Reporti ng Servi c2.
13.

For Nebraska, lambs l o s t t o p r e d a t o r s a s a percont of lambs born
t o t a l e d 7 percent i n 1971, 8 percent i n 1972, 8 . 7 percent i n 1973 2 n d
1 . 8 percent i n 1974.

Adult sheep l o s t t o p r e d a t o r s a s a percent of

stock sheep on hand as of January 1 t o t a l e d 3 percent i n 1 9 7 1 , 3.5

".

;:;ares

i r e f r c n Gee,

2; 2 ] . ,

1,972 and 1973 being !iebraska Li\/2s:3ck
14.

-.

c b e s z s ; ~ . s=
isji

i l i i ;:gsres

Reports ( 1 9 7 2 - 7 < ) .

In Yew i.lexico, iamhs l o s t t o predarors as a percent o f lambs borr;
!were

5.2

p r c e n t i n 1972, 5.5 percent i n :973, 5.18 percent in

1975 and 7.35 percent in 1975.
surveys

3f

These r e s u l t s , which are based on

99 r3nchus i n souihe~s;ern New Xexico (81 rzncSes i n

1975 and 75 ranches in 1976) a r e l i m i t e d

i9

posr-dock:ns I C S ~ P S

and a r e ro be com~aredw i z h the 17.1 perceqt l c s s r a t . ss a
percentase of 1 ambs born i n 1374 reporrea sy Gee,

9:

a1 .

,Adu; r

snesp l o s t t? predators a s c m p i l e d by ,Yr.L i t t a u e r , based on
surveys sponsorzd by :he ~VerNexica 'Xaoigrchers, show a precacjon
loss raze . s r 2 . 5 percent i n 1970, 3 . 5 percent i n i371 and 1 2 7 2 .
C

6 . 1 percent i n 1 9 7 3 and 9.6 percenc in 1 9 7 4 .

collected Yron 33 ranches in a r

Tbese d a t a aer.

sponscred by rhe Yew :?exits

Voolgrowers, Inc. i n which the ranchers were asked to r e g a r t on
predation losses f o r the preceding f i v e y e a r s .
a:

be compared wi:h

-1

inese r e s u l t s are

the ioss r a t e of a d u l t sheep t o predators

reparted by Gee f o r :dew hlexico in 1974 of 5 . 9 perceni.
Losses of lambs t o predators as a percenrage of lambs born i n
S o u t h Dakota were 1 . 2 percent i n 1963, 2 . 3 percent i n I970 and 3

percent i n 1974.

Losses o f a d u l t shaep as a percentage o f stock

j~7:,

f r o n S o u ~ hCakotB L i v e s t o c k and P o u l t r y L o s s s s ( 1 370). A tab1 e
compiled from USOA SRS d a t z showing l c s s e s o f sheep a n d l m b s t o
a1 i c a u s e s i n S o u t h Dakota f o r the , y e a r s 1960 t o and i n c ' u d i n g 1981

shows t h a t combined l o s s e s ranged fron a low o f 5 . 5 p e r c ~ n ti n 1961
t o a h i g h o f 9 . 3 p e r c e n t i n 1 3 6 7 , {were 3 . 7 ? e r c 2 n t i n 1 9 7 7 , aca

i n 1977, d e c l i n i n g t o 8 . a perc2nt i n 138;.

Lamb de3chs t o a11

c a u s e s a s a p e r c 2 n t a g e o f lambs docked r a n g e d f r o n a ics,v o f 7.3
p e r c e n t i n 1961

t3

a h i s h o f 1 3 . 0 i n 1971 , ere 1 2 . 3 p e r c e n t i n

1 9 7 2 , and ranged frsrii a low of 7 0 . 7 F e r c e n x i n 1373 t o
1

'

12.4

sheep
for

5

iiich o f

7 e r c e n t i n 1 3 7 9 , d e c l i n i n g t o 1 1 . 3 p e r c e n t :n 19S1, Losses o f
70

ti12

a1 1 causss f c r t h 2 p a r s

y e a r s 1 9 6 5 t h r o u g n 1972.

7

-7

i ~

1

t3 h r ~ u ~1185
h s r e : o i ~ e r :b,an

A;~hougn he acknowledged t h a t he

h a d no d a t a on t h e p e r c a n t a g e o f lamb 1 o s s 2 s a t t r i b u t a b l e t o c o y o t z s ,

Mr. Roger P e a r s o n , S e c r e t a r y o f the South Gakota g e ~ a r t ~ e no ft
A g r i c u l t u r e , c o n t e n d e d :ha;

i t was !ogica! t o a t t r i b u t e i n c r e a s e d

lamb losses s i n c ? 1372 t o p r e d a t o r s .

3 percen:

i n 1073 and 1 9 7 5 .

2 1 s aaya was ; o l : ~ c ~ e da n d ccmp;ied

E;/

the Texas Crop and L i v e s t o c k R ~ p o r ~ l nSge r v i c e a n d , w i t h t h e e x c s p t j o n
o f t h e daca f o r 1967, i s a l s o c a n t 2 i n e d i n Gze, e t a:.
repo'r;ed

G2e, e: a:.

lamb l o s s e s i n T2xas ra p r e d a t o r s a s a p e r c e n t a g e o f larncs

born totaled 11.3 r

! n t in 137? of which 5 . 3 p e r c z n t o f iambs born

-.

.

were l o s t ;o ~ 3 ~ 0 ~ 2n si .i c 3 r r e s p o n d s c:os21y with t h e 1 i . d percan1
of lambs born l c s ; 1 s p r e d a t o r s a s
L i v e s t o c k Reporting S e r v i c e .

r e p o r t e d by t h e T2xas CTOD a n d

Alehougn lambs last t o p r e d a t o r s a s

a p e r c e n t o i l i m b s bdrn a s r e p o r t e d by t h e a a l s Crop and Liveitsck
l
-

Reporting S e r v i c e t o t a l e d 3 F e r c e n r i n 7373, ; l r . i i r ~ a u e rreviiea t b i j
-.

r i y r i . upwari

n3

1 1 . 0 F e r c e n t b a s z d c n da:.

c s n : r i ~ e d :. 7 -i e x a s

Sheep i ~ Goat
d
OearS Losses and Xarkeiing ? r a c t i c e s ( 1 3 7 2 ) ~ n l
USOA SRS d a t a on larno c r o p s i a r t h e y e a r s 1567 and 1371-78.

Hr. l i t r a u e r

made a s i m i l a r . c a ! c u ? a t i a n and d e r i v e d larib l o s s e s a s a p r c e n t of
lambs born o f 1 2 . 3 percenx i n 1976, 3 . 2 p e r c e n t i n 1977 and 1 1 . 9 Fercen:
i n 1978.

The l o s s e s of a d u l t sheep a s a p e r c e n t of scock sheep o r e

y e a r o r eider on ?and i s of J a n ~ a r y1 as r e p o r t e d by che Texas Crc?
and L i v e s t o c k Reporting S e r v i c e t o t a l e d 1 . 9 p e r c e n t i n 1367, 3 . 1 p e r c e l t
i n 1971 , 1 . i p e r c e n t i n 1972 and 2 . 4 p e r c e n i i n 1973 and 1 . 7 7 e r c e n t i n

72

1573.

I

;ne

1di:h

of

f

hese f i $ u r ? s ? r e c e n t z i n e d i n See, et a ? . 2 n d at-5
$23

r z o o r ~ e aadui t sheep 13s; :J

S T G C ~sheep

:3

?rsdascrs i n i3xas

be cor;ar?d,
2s

2 . 3 serz?nr

i n 1374..

1 7 , The Wyoming Crop and Livestock Reporting S e r v i c s has col izcr2d and
r e p o r t e d d a t a on t h e p e r c ~ n tof lambs docked l o s t t o coyotos s i n c c
1965.

T h i s d a t a a s compiled by Mr. L i t t a u e r s h ~ as l o s s r a t e

ranging frorn 3.31 p e r c e n t i n 1968 t o 6.C3 p e r c d n t i n 1372, i n c r e a s i n g
t o . 8 . 2 3 ?erca-f, i n 1973 and 9.29 p e r c z n t i n 1974.

Gee, es a l . reporr,

lamb l o s s e s t o 7rea3cor-s a s a ? e r c 2 n t of lamos born of 1 1 . 7 perc?n:
i n 1974, of which 9 . 3 p e r c e n t were t o c o y o r e s .
'Jyoming A g f i c u l t u r a l T t a t i s t i c s , Gee,

2t

3ased on a pub1 i c a t i o n ,

a i , re7orr. lambs 10s; t o

p r e d a t o r s ' a s a p e r c 2 n t o f lambs born t o r a l l n g 5 . 5 7 e r c e n t i n 1966,

percenr. i n ? 971 , 7 . 9 percenc i n 1972, i O p e r c e n t i n :9
p e r c e n t i n 1975.

ano 1 0 . 8

I

Xyoning USDA SRS d a t a showed lamb 10853s ro :cyot?s

a s a p e r c e n t a g e of lambs docked t o t a l i n g 9 . i 3 p e r c 2 n t i n !975, 3 . 2
p e r c z n t i n 1976, 7 . ?0 PerconT i n 1377, 7.07 7 e r c e n t i n 1978 and 11 .03
p e r c e n t i n 1979.

Adult sheep l o s t t o p r e d a t a r s a s a p e r c e n t of s t a c k

sheep on hand as o f January 1 o f 2ach y e a r a s r e p o r t e d by t h e S t a t e
Reporting S e r v i c e and t h e Wyoming Crop and Livestock Reporting S e r v i c l
were 2 . 3 p e r c e n t i n 1966, 1 .6 p e r c e n t i n 1968, 2 . 3 p e r c e n t

n 1569,

2 . 2 p e r c e n t i n 1970, 1 . 7 p e r c e n t in 1971, 1.8 p e r c e n t i n 1972, 2 . 9
p e r c e n t i n 1973 and 2.8 p e r c e n t i n 1975.
f i g u r e f o r 1974 was 3 . 5 p e r c e n t .

The comparable Gse, e t a1 .

13
;4r, i a r y y 3 g ~ r r ? ~3f, T

~ ~ I C -

~
^. C ' / S T ? . r ; i 2 n 3 n
,--=, 2 1. l'S

= a m ? b r e a u F e ~ e r i t i c n ,a i ~ x e ~r 3 1 ~ 7s:s i 3 n e r ~f
Pepar'xen:

IZf

ti8

,!;e

t

4-/GRl
,

ng

,>ijczir~

o f A g r i c u l t u r e and a w i t n e s s f c r A i 3 i , przparod a c a b l e

o i sheep and lambs l o s t t o a l l c a u s e s i n Wyoming f o r che y e a r s
1971 through and i n c l u d i o g 1980 from d a t a c b r a i n e d i r c n t h e ',4yorning
Crop and L i v e s t o c k 2 e b o r t i n g Service.

Oividi ng t c t a i r e p o r r e d

l o s j 2 s d u r i n g t h e 10-year 2 e r i o d o f ?,9 1,300 by t h e c u m u l a ~ i ~ / e
i n v e n ~ a r yd u r i n g :ha;

o e r i o d o f :S,CdS. 00, he a r r i v e d a t an a v e r a g e

l o s s rare o f 14.26 percent.

,Ac:arding

ro Hr. 3 o u r r e i , t h e s e l o s s e s

were c a l c u l a t 2 d i n e x a c t l y t h e same manner a s t a m 1 1oss2s l,ver4
c a l c ~ l a t e db y C a i n , 2t a l . , wh!ch had a r r i v e d a t an 3l.3 9er:eni
aver392 t o r a l l o s s r a t s i n Qyoming f a r t h e 2 e r i o d 135G-79.
Comparing t h i s r a t e w i t h t h e 7 . 3 p e r c r n t averat;? l ~ s sr s t e i n
Wyoming f o r t h e p e r i o d 1940-19,i a j n , e t
l o s s r a w s had

10;

21,

had concjuded

3.2:

s i g n i f j c a n t l y changed d u r i n g ;fie ; e r i o d wneo

By c o n t r a s t ,

Yr. B o u r r e t ' s c a l c u l a t i o n s i n d i c a t e d

t h a t an approximace 6 gercen:

i n c r e a s e i n t h e i s t a l a v e r a g e sheep

1080 was u s e d .

and lambs losr. d u r i n g t h e p e r i o d 1971 -80 a r an approxjmate 71
p e r c e n t i n c r e a s e i n total l o s s e s d u r i n g t h a g e r i c d .
19.

The i n v e n t o r y f i g u r e s used by Mr. B o u r r e t t o nake t h e c a l c u l a t i o n s
r e f e r r e d t o i n t h e preceding f i n d i n g were based on s t o c k sheep on
hand a s of J a n u a r y 1 of each y e a r .

This s t o c k sheep i n v e n t o r y i s

e x c l u s i v e o f sheep and lambs on f e e d and Mr. B o u r r e t used t h e s e

.

,\It-.

j ~ ~ r r e x c' 2j l c ~ l a : i 2 n s a ; so j n c l ~ c e d$ r e - c o ~ k i f i s l C

S ~ ~53S 1 am58

as r @ p o r ~ e bd y ~ n e:hdt 1 6

<22c

yezr

percent of high l o s s ranchers reportsd i ncrcassd

predation l c s s ~ sf o r t h a t y e a r , 62 percent reported lower ?redation
losses and 22 percent reportsd no cnange in losses f o r t h a t p a r .
From t h i s i t might be concluded t h a t :oss?s wer? decrpas'ng i,,rom
1974 t o 1975.
22.

The study "The 2concnics o f Shesp Prodacion i n Scuchwes~srn ]:an"
atx2mp~2d t o veri f y predation 1~
flocks in sau;hweste?n

S S ~
o n S can

ranches havi ng rsnge

Utzh durlncj zhe period 1972-75.

ihji sxdy

i n d i c a ~ s dt h a t tne predation loss r a t e o f lambs i n 1375 was l a s s chan
half of t h a t prevailing in 1972.

!-as: o r missing animals 1,4hos2

carcasses were never locatzd w2re a p p a r ~ n t l ya t t r i b u t e d a:
a n d o t h e r causes in fhe same p r o p o r ~ i o nas v e r i f i e d 1ossss.

7reda:crs
Though

he did not dispute the f i g u r e s reported, Dr. Plielsen questioned
whether the area could be considered representative of the S t a c e of
Utah o r of the 1 7 western s t a t e s .
23.

S t a t i s t i c a l data frcm USCA and Utah indicatz t h a t combined sheep and
docked lamb losses t o a71 causes f o r the years 1931 t o and including
1980 have fluctuated in a r e l a t i v e l y narrow range, varying from a
low of 8 . 2 percent i n 1966 t o a high o f 13.75 percent in 1975,

decreasing to 8.6 percent in 1979 and 9 percent i n 1380.

sheep f l o c k s in Utah.

Tile

s t u d y (tias primarily con.cerned :vi r n she

econorni cs o f farm f l ock production, was conducted by psrzonal i n h r v i ~w
and included a sample o f producers having f r o m lG0 t o ,500 brzading 2wes.
Coyotes were r ~ p c r t 2 dto have accountsd f o r 5.6 percent of t h e annual
.iamb crop i o s s ? s , including pre-docking l o s s e s , and 1 . 4 ~ e r ~ 2 3? it
adul t ewes

25.

-

Dr. C l a i r E. l e r r i : ? , a r e t i r e d Aninal S c i e n t i s t ~orrneriysnplayed by
3/
the U . S . Depar~nento f Agricul t u x and a w i t n e s s i n t h i s proczeding,
I

C

p r e s ~ ted
n d a t a purpo~c2dly s howi ng a dramaxi c incrlzse i n 7r24a t i cn
loss r a r s an snecp a n d lambs sinca 1Y2 and the ban on Scnpound 1 3 G .
Dr. T 2 r r i l l appeared t a a c ~ r i b u t ?alnost ,he
sheep i n v e n ~ o r yfrom the 57 n i l l i o n i n 1 9 4

LC

30 n l l l i o n i n iS5C t o

He developed a n i n d e x t a det2mine trznds and losses

przdation.
.

e n t i r ? r3duc~'on i n

-

using percentages of death2 o f l m b s minus percentages o f d e a t h s o f
sheep as report2d i n USCA s s t a t i s t i c s showing inveniaries on hand

as of January 1 of each year and deaths from a l l caus3s f 3 r the
years 1940 to 1980.

He f o u n d t h a t t h i s index was highly r e i a t s d co

predation losses as reported i n data compiled by t h e U.S. Forest
Service.

His c a l c u l a t i o n s a r e based on the theory thac ltdnen predator

losses a r e increasing, the percentage of lamb deaths increases f a s t e r
than t h e percentage of sheep deaths.

He concluded t h a t lamb and

sheep deaths from predation acount f o r a much greater percentage o f

Although Dr. T e r r i l l s t a t e d a t t h e hearing t h a t he represented
3/
the Aiierican Society of Animal Science 12 not::c
GT ~ t h i bppearance
i
oy
t h a t organization has been made in the proceeding.

i 'I

x z a 1 l o s s e s ehan befor? 1372.
c v e r a l l Ian5 l o s s e s

t2

Accgrding

ar-ecazicn

t3

Dr. Tlrril I ,

2s 2 22rcont 3 f

caus2s were / 2 ;srtsnx i n 1970, 80 ;erc?nL

lssszs

.4-7,.

-

7

2 1 ,

IYIL,

73 percent

i n 1974, 84 perc2nt i n 1977 and 82 ? e r c s n r i n 1580.

Likewise,

7 .

in

he concluded t h a t l o s s e s of shee? t o p r e d a t o r s 3s a percent of
l o s s e s t o a1 1 causes  ~ ?,s': :',ai 1 st;:-3 fo:- :ro?r -c,
.P~:

;

any proper j t a c i j t i c ~ ! analysis o r cz!nci~sicn;.
A 3-year s t u d y of f i v e ranches i n southern Wycming resulted i n
predation being confirmed as causing loss of 1 . 5 percent of lambs
docked i n 1973, 2.1 percent in 1974 and 3 . 2 percent i n 1975.
Corrospondi ng confi med ?,.re ? osses t o predators were 0 . 2 per-cznt
of the inventory i n each of the t h r e e years which i s t o be

compared with 1974 losses reported by Gee o f 11.7 ? e r c s c o f tke
lambs born and 3.5 percent losses c f ewes.

A study of 3 bands of

sheep i n Idaho r2poced coniimed predation l o s s of lambs ta be
1 . 3 percsnr of 1 ambs born in 1973, 1 . 7 percent in 1974 and 1 . 2 Jercznc

in 1975.

Ewe loss2s as a ;2rc:nt

p e r c ~ n tin 1373, 0 . 7 percent i n

of tcxal ewe i nvencory derz 1 . 6
19id

and 0 . 3 percenc i n 1975.

An

" a d j u s t ~ d "predator 1 oss r a t e ,das d e t e m i zed by applyi ng the ?erc?nt,Age
v e r i f i e d predation losses bore t o t o t a l losses and appiying This
percentage t o missing animals.

This resulted i n lamb losses being

3.1 percent o f 1 ambs born i n 1 9 i 3 , 3 - 3 percent in 197c and 1 . 3 percent
in 1975.

Adjusted ewe losses were 2 . 3 percent, i . 3 percznt and 0 . 8

percent, r e s p e c t i v e l y , f o r each o f the three years.
r a t s s a r e t o be compared with a predation

:ass

These loss

r a t ? f o r Idaho of

5.8 percent o f lambs and 2 . 0 percent of sheep i n 1974 reported by

Gee,
34.
.,

2t

a7 .

A study of 10 large sheep operations in Utah resulted in reported

ccnf i rm~d1 ;.ma ;gases

~ L I

pre;;ato?s- o f - ? .7 pe?ccerr*,of lambs docked- ir,

1972, 1 . 5 percent in 1973, 2 . 6 percent in 1974 and 2 percent in 1975.

A d j i ~ s ~;ant
d
lasszs were

7 2 e r c e n t c f iarnos d o c ~ ? ai n 1911, : . I I,

p e r c ~ n ti n 7 373, 5 . 3 percent i n

'I "
7 1
21%

on w e losses :ver? noc a v a i l a b l e .

and 2 . 3 7ercen; i n 1 3 7 5 .

3y conzrasz, Gee, e s

31

.,

3aca

found

Utah predaxor lamb losses of 72.9 percznt of '~ambs b o r n and ewe
losses t o predators
i n 1974.

3 i

5 . 2 percent of the inventory as of January 1

Another f i e l d of biological s t u d y appearing o n

i)r. Grandy's t a b l e i s t h a t o f

t7,tlo inigratury

sneep bands i n ?levadz

ldhi ch were studied during the period 1373-1 97J. Repor~sd 1 osszs
t o predation 'dere 6 . 5 percent of lambs docked and 0 . 7 percznt o f
the ewe inventory for r,he ;/ear 7 9 7 4 .

This

is

t o be cmpar3cf 1,qiti7

the 1 amb 7ossss reported by G e , e t a1 . i n Nevada i n 1974 as 3 0 . 4
percent o f 1 ambs born and ewe 1 osses in t h a t year of 11 - 7 p e r c s n t
o f the January 1 stock sheep invcnrsry.
i

,

3ecausz the ianc los:zs

LJ predators i n Nevzda reported by Gee exczedecf 85 percenc c i

t a c a l lamb l o s s z s , Dr. Grandy asszrtzd thar they c o u l d not be taken
skeriausly.
35.

. ,
Gee, e t a i . p r d a c i c n i a m b l o s s 7ercentages wer? c a l c u i a t ~ don zne

basis o f lambs born and thus i n c l u d e d ?re-docking l o s s e s .

This was

n o t t r u e of the 'Ayoming, Utah and Nevada s t u d i z s referred ~o above
and shown in T a b l e 1 of Dr. Grandy's t2stirnony, as these studies based

the lamb count on lambs docked.

Gee, e t a1 . , however, a l s o calsolat2d

p o s t - d o c k i n g loss2s t o predators and i f pre-docking losses a r e

eliminated the percentage o f lamb losses t o predators f o r the c i z e d

s t a t e s are reduced t o 9 . 2 percent for Wyoming, 1 1 percent f o r Utah
and 14.8 percent f o r Nevada.

36.

!!r, S r a n d j a l s o men:icrfd ;:ss;es

pradator c g n t r o l .

1~nder:rriZt9n3y she " s h a n d i / ?i ~ i fl ?

3e rzf2rred t o a study of

2

'

band of range sheep

under the control of herders i n an area i n C a l i f o r n i a , during the period
June 8 t o September 2 9 , 1976, where there had been no predator c ~ n t r o l
practiced f o r over nine y e a r s .
care of herdevs

7,40u?d seem

T h e f a c t hat tr,e band was under the

t o negats t h i s as a nc control s t ~ d y .

Reported v e r i f i e d lamb loss t o predators was 6 . 3 7erc2nt and the tots1
loss of ewes and 1 ambs t o 7redacors was 3 . 8 percent.

I nis

-3

o f l e s s than 4 months duratjon i s , of course, very skcrx.

s t o d y being

~Icr2ovzr,

alrhough the researchers i n t h i s study were confident ' h a t t h e y had
f o u n d possibly 100 percent of the l o s s e s , / s t h e r sta.3..&,

ltiith

possible exception of Texas, :he !ow ?redaiisn rites a r e
a t t r i b u t a 3 1 e in p a r y t a the f a c t that nost :beep a r e main~zin2d i r
f a n flocks ;vhich enhanc2s insnacenent przctic.5,
. .

,

night, to rebcce o r mn;:s?;e predation.

such as 2enning a t

Anoiher l o s s i b l e r2aian ; s

 ~ tl ~ s ; ? ~

t o lambs during the period o? b i ~ t ht h r o u g h s z l z I,vere 2 percent i n
i972, 20 percent in 1974, 22 percent in 1975, 27 percent i n 1975 2nd
approximately 30 percent in 1978.
percent o f lambs born.

These losses ar2 in terns of

Losses in 7975 and 1976 ivere a l l to coyotzs.
1

>

He s t a i e d thar. 1 3 i ~r e c ~ i l dduring
~
the jurrxer -.oni.hs ner? zaintained
by a nan and his wifp who looked a f t s r the she?? a n d chat because
:he sheep were i n fmced paszlires, i r : as ; j o s s i j ? ? t o I O C Z ' L ~qeariy
a l l ehe kii I s .

iiis ciirreni: przdation r a t s was

of sheep a n d lambs a ~ d1 percznt t o guord dogs.

sca12d

to be 10 17ercen;

:?s acxri b u t 2 d the

reduction in loss razes t o the use o f guard dogs, flnczs and us? of

2

helicopter in a e r i a l h u n x j n g ~f ccyo:?s.
37.

Nr. 4 . K . Siddoway, a large migratary j h ~ a pcperassr f r c n S T . ,J,nthony,
I d a h o and a w i tnzss f o r Wyoming , e i a1 . , t e s c i f i e d ;hat he and iis
sons have suf- ?red high oredator l o s s e s , in one year losing about
600 lambs from a t o t a l of 9,000 t o 10,000 or approximately 5 t o 6
percent.

He f u r t h e r t e s t i f i e d t h a t i h e highest percentage of losses

from docking t o shearing was due t o disxise and t h a t 30 t o 40 perc2nt
o f losses from shearing t o the time the sheep a r e t r a i l e d t o s u m e r

range wer2 due t o predation.

He stated t h a t ~ o s ot f the weak or sick

lambs had been "weeded out" by the time the sheep a r e on the surraer
range and t h a t 90 percent of losses durfng the s u m e r were due to
predation.

He acknowledged t h a t he h a d n ' t kept good records on l o s s e s

t o a l l causes and t h a t for every lamb l o s t t o coyotes, there m i g h t be

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3ecausz hs d i d no: have r x c r s s o f 1 a m s born or sockzd,

on the open range.

He s t a t x i t h a t they converxed t o a p i r t i a l

shed lambing pera at ion in 1980, wherein approxirnat~!ly50 p e r c ~ n tof

the ewes were shed lambed.

He f u r t h e r s t a r e d t h a t i n 1281 e x t r e ~ e l y
1

\

high coyore l o s s e s n e r i n i ~ r r e c !\,then one ionch old shed laabs &Here
turned onto t h e summer range.
lambs.

I n one nonth coyoc2s ki!i?d 79 o f 590

He t s s t i f i e d chat p r e d a t o r l o s s c s

f o r an occasional 5 e 3 r .

der9

due ro z o y o ~ 2 sexcep:

A? though hi: w r i t t z n s z a t s n e n i i s t~ t h e

e f f e c t t h a t ; they have n o t suffer2d any ia s s e s rso 2agi e s ' i n 1 5 y e a r s ,

heb t e s t i f i e d cha-;. i n 1982 t c t h e d a t e o f t h e hearing 1C6 lambs wer?
I

i i l l z d by e3g1ss and 73 by coyot2s.

-,

: n a cnly ;os;

by I;?. Pzpoulas a r e l o s s e s co predac3r;.
I

recgrds z a i n t a i n e d

kie 3 t t r l b u c e d the Icw lcss?s

' 1

irl 79g0

c3

f h e fact_ luckolls ii: c a n n e c t i o n w i t h zn a p p l i c a t j o n f o r ;;he
placement o f a 1080 b a i t s t a t i o n on h i s p r o p e r t y ,
h i s lamb l a s s e s averaged a b o u t 4 percon:

ii

a p c e a r s tnar.

d u r i n g the y e a r s ~ e n c i c n e a

and t h a t he l o s t o n l y f i v e a d u l i sheep t o c o y o t e s d u r i n g :ha:
period.
59.

Hr. Don Meike, a sheep and c a t t l e r a n c h e r from Kaycee, Uyoming,
c u r r e n t l y Chainan of t h e a o a r d of t h e National Woolgrowrs Associatlcrn
and a w i t n e s s f o r Wyoming, e t a1 . , t e s t i f i e d t n a t r e c u r r i n g k i l l s

o f sheep and lambs were common on h i s ranch i n t h e 1 9 3 0 ' s and
1940's.

He s t a t e d t h a t when t o x i c a n t s were i n t r o d u c e d i n t h e

p r e d a t o r c o n t r o l program i n t h e 1 9 5 0 ' s and 1 9 6 0 1 s , l o s s e s t o p r e d a t o r s
-

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f o r th? catis2 o f cnat l o s s .
61.

,Yr. John J . Yines, a jfisep a n d c a r z i e rancner from G i i l z t z e , 'tiyoning,
Presidenz of the Campbell Coun-cy Predatory Associarion, and a l ~ i ~ n e s s
?or the Association, t e s t i f i e d tha: there had been a decline i n sheep
numbers i n Carnobe1 i County frcm 1 1 9 , i 71 in 1372 to 37,822 i n 1981 .

Ye

'

a t " ~ i b u t e dt h i s deci ne 3rincipalx1y t o ~ r e d a t i c nproblsms and ?crlac",d
staiernenrs from ranchers who nad s i c h e r gone cu: o f ~ h ?sheep kusicess
o r reduced t n e i r herds becausz of pr.tdaror problenls.

j e indicazed ?ha<

he numbers of coyot2s i n Camooei 1 Counr;~ have i ncreas2d s i n c 2 1912,

b a s i n g t n i s on the f a c t thas o o u n ~ ' e s were ? z ; d on an averase o f

1--

I

~

C

coyoIes 3 ~ yre ? r i n che s2ven years prscsaincj 1 2 7 2 , w h i l e t h a t n ~ x b e r
had increaszd t3 -SO1 f o r 1976. l?e ,-,rti?er t 2 s t i f i e a m a t :he nl;mber
-I

I

of f o x bount'es paid i n Campbell County al)eraged ;85 ;er year dur'ng
the seven .year period p r i o r t o 1972, b u t averaged 666 per y%r during
the perjcd 1972 through 1 9 7 6 .
tsstimony appears

t3

~ l t h o u ~the
h t a b l e s u b m i t t e d wiih his

shcw a decline in bounties p a i d f o r ioch coyotgs

and ioxes a f t e r 1976, no bounties on foxes were p a i d in 1978 a n d
t h e r e a f t e r , bounties were paid only during the perjod April i through
October of each year, because pric2s paid f o r f u r s were considered
a s u f f i c i e n t incentive t o h u n t coyotes a n d foxes.

An a f f i d a v i t

executed by Mr. H i nes on December 1 4 , 1976, i s t o t5,e ef i e c t t h a t
he had no confirmed losses of sheep and lambs t o coyotzs during the
years 1%

t o and ~ n c i u u ~ niy9 7 5 , t k a c

ne l o s t 6u lamos LO coyoces

i n 1976, 50 o f which were before docking, t h a t three coyotes were
k i l l e d and t h a t t o his knowledge. he had no other [coyat?!
during the balance of 1976.

kills

52.

+lr. B a r t c n +i,artza, 3 i y 3 c t c r c f Fish and

of New, Plex'i co 2nd

.,
2 ';r; Tries:

Nil,,? i f ?f o r

f o r 'Xycmi ng ,

2t 21

.

.,,

t,.-'

t ~ -?2 7 ;
,

"7

~~~~;~

r 7 2cl ;:hat 5assd

"'

8

on contacz w i ~ nmembers of h i s iarniiy and o ~ h e rssocknen i n the
Puebl o , both c o y o ~ gnumbers and predasi on have i ncreassd ivlmense i y
i n the region-since c a n c e l l a t i o n of the use of 1080.

He submitted

t h e r e s u l t s o f a survey of sheap producers i n the Pueblo h i c h
i n d i c a t e d t h a t auring t h e ;eriod J u l y 1 c n r ~ u g hOctaber 3 0 , 1577
t o pregators, chiefly coyotes,
and 124 rams.

l ambs

0
AIt5ough he s ~ a c e dt h e r e wer? a ~ p r o x i m a z e l y io,COO
7

heads of shes? on the r 2 s e r v a t i o n a t t h e t i n e o f the h e a r i n g ,
inventory f i g u r e s for 1977 were no; r e p o r ~ dand i:
t o c o n v e r t t h e s e l o s s f i ~ g r e st a p e r c e n t a s e s .
i:

is ns1 ? o s s i b l ?

Fron a e s z figurgs,

appears  --4 rdvL' l"

F i e l a :?st8 c f t h e c o ? : z r s
and A l b e r ~ a ,Canada, during

t h e period June 7 , 1978 t o and incl udi ng March 31 , 1980.

Of 28

f i e l d t g s t s during c h i s p e r i o d , 1 7 were consider%! s u c c e s s f ~ l in
t h a t preoation e i c n e r sxopped o r declzned following use of the
collars.

Eleven t e s t s wern

U ~ S U C C ~ ~Sccause
S ~ U ~

predation s t ~ p p e d

f o r unknown reasons o r coyotes did not a t t a c k c o l l a r e d animals.

Of

52 a t t a c k s by coyotes on c o l l a r e d sheep during t h e period June
t h r o u g h October 1978, 36 c r 69 percent of c o l l a r s were punctured

8/ I n a d d i t i o n t o sodium f l u o r o a c e t a t e , f i e l d t e s t s of t h e c o l l a r
have 6een conducted using sodium cyanide and diphacinone a s the t o x i c a n t
So;j."m

fl"oi-fiacetate
has U C C l l
" - A -

'-';"A"^-'

ClUJUUyCd

- A " +

lllU3 L

",""^"F"l

2 U L L F 2 3 1 ul l

- -.
Cdf""L a ~ ~ 32r s 7 1 ~ 2?cisaced

ccyotss ;vere found.

azcacks on co:iar?d sheao or seats c, u r -, n s :he 9 2 r i o d Iiovember
,

through fiarch of 1380, 30 c o l l a r s or 71 percent der? punctured.

Secause coyotes were removed by c c n v e n ~ i o n a l control techn-iqces

o n the t e s t ranches o r on adjacent properties during cbe period
o f the t e s t s , i t i s n o t possible to a i t r i bute the decline or

cessation of predation s o l e l y t o the co'l l a r s .

I t i; clear,

however, t h a t such a reducticn o r cessaiion f n l :owing evidence
o f coyote a ~ ~ a c kans c o i l ar2d animal s dnereby csl 1 a r s -/ere p u n c t u r ? d ,

consti t u t e s c o n v i n c i n ~ , i f c i r c z n s t a n i ~ a l, evidence of col l a r
e i f e ~ t i v e n e s s ; . ,411 ~ ~ s T37s c o l l a r s t o dace have been in Penc&
pasares.
75.

Extensive t e s i s of the toxic c o l l a r on goati have been csnducied

-

a t three separa-e s i t e s on the L . C . Howard Ranch, ? e r l d i a n , ;?xzs
( f i n d i n g 7 1 ) beginning in lace duly 1 4 i 9 .

A t the i i ~ x e ,che ?o;varas

were losing one o r ,Tare ,Angora cjoats t o coyotes eacn day, 1 2 coyore
k i l l s having been v e r i f i e d as occarring i n the week anding July 23,
1979.

Upon the beginning of :he r e s t s (Texas Test ?lo. 1 ) , col l a r s

were placed o n 20 small k i d s .

Collared k i d s were k i l l e d and c o l l a r s

punctured on t h e nights of July 27, Augusc 10, September 6 , 12, 2;

( a collared k i d k i l l e d and the c o l l a r missing, b u t probably a r o i e n )
and 2 2 , Octocer 7 , 2 2 , 23 ( t h e c o l l a r missing b u t probably broken),

January 1 1 and 25 and Febrlrary 2 2 , 1080.

Coyote predation declined

markedly, there being three kt11 s in ilovernber and one i n December

3

-

7

1713,

,.

.

.

- h r 5 ~1 , ; j3nl;ar:/, four I n

?

r2gryary

,A1 zhou~n no ~o:sar,gd c2yo-es , e r e found, ::

l e a s t I 3 coyoc2s were ? r a c a ~ ! y k i l l ? d as
collars.

I

a n d one ; n Y ~ r c n;lf :380.

3

,V;S

C S ~ . C ~ : C ~ CL-~z.: L C

r ~ s u ; ;z f 7unct~r;ng

Becaus? a t l e a s t 1 5 coyotzs wer? taken by conventional

neans *xithin a five-mil? radius o f the t s s c s i t 2 during the same
period, t h e reduction i n predation could not be 2txributed s o l e l y t c
use of xhe c o i l a r .
7

-

10.

During the period of the czst r e f e r r s d co in

c!.-1

orec3ding f i ndi ng

a t leasx one coyote avoiden- a he c o l l ~ r5y attacking g c a t s Trrcrn tne
8

,

rear o r f l a n k , ki 1 1 ing one uncol lared kid, one a d u l t g o a t and

240

c a l l a r e d goat: i n Oc"Lbbr, one co1 lared goat i;n 'Icvmber "379,
a n d two adu? t goats in February and one c a l l a r c a k i d i n ;4arch oP

1980. A i t h o u g n chis point of a t t a c k i i c h a r a c t e r i i t i c of

C G l~ i i l i i ,

dog k i l l s were ruled o u ~because 3f c l 2 a r c o y o ~ 2Cracks i n the
v i c i n i t y 3f scme of the remains.

OSv'ously,

che col l a r i s ine+fect;vc

under such circumstances.
77.

Tests a t another s i t e on the Howard Ranch (Texas Test No. 2 )
resulted in

tn2

k i l l i n g by cgyotes of one collared kid and a c ~ i l a r l d

nanny on August 1 9 and anothzr col lzred kid on August 2 2 , i 973.

1

t h r e e c o l l a r s were punctured and there was no f u r t h e r predation a t
t h i s s i t e i n t o march 1980.

While no dead coyotes were found, it

was concluded t h a t two o r three were probably k i l l e d .

Twelve

coyotes were t a k e n by conventional means within a five-mile radius
of t h i s s i t e during the period l a t e August 1979 through May of 1980.
T h i s t e s t was considered successful and e s p e c i a l l y noteworthy

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i n O c t o b e r , o n l y one i n November, c n r e e i n 3 e c m b e r 1979, on2 i n
J a n u a r y and PAC i n Harch o f 1980.

A1 though 19 coyoces were taken

by o t h e r means wiAhin a f i v e - m i l e r a d i u s of t h i s s i c ? , c h i s z e s t

was c o n s i d e r e d s u c c e s s f u l , s i x c o y o t e s beinS probably t a k s n by t h e
c o l l a r , and t h e c n r o n o l o g i c z l r e c o r d o f c o l l a r p u n c t u r e s by
providing convincing,

,

I

t

lyotzs,

r c i r c u r n s ~ a n t i a l e v i d e n c e , o f t h e e?-f:cri veness

of t h e c o l l a r .
80.

T e s t s o f the t o x i c co1 l a r i n 1979 a t z c o c h e r rancn i n Tzxas , wni cn
had a p p a r e n t l y suffePed heavy l o s s e s o f goat; t o f o x e s and c o y o c e s ,
were u n s u c c e s s i u l , bec2952 ? r ? d s t i o n zlzsed o r d e c l i n ? d f o r
u n a e t s m i ned rezsons and no a z t a c k s on coi : a r e d ? i vestock o c c u r r g d .

At Idaho T e s t S i r e No. 2, c o y o t 2 s k i l l s d 1 4 p e r c z n t of lambs kecqeen
docking and marksting i n 1978.

i o s s 2 s dere caken by y - d n ' s , which means :hat

concl u&d :ha;

2s jezc; . . i 7 1~ & l 1 coyotes
,

2nd

a?pr~xlmat?iy

jcbca ts had been rmo8;ed

from the approximately nine-square-mil2 a r e a .

From a e r i a l t r a n s e c t s ,

i t was cietemined t h a t tne fawn:doe r a t i o on ? i n

1953, chat 195,500 a i such cubes $were used in 1355 a n d r h a t , ;tne
number has sincg s t e a d i l y declined t o 3,240 i n i980/81.

F i f t y 1JSO

meat-bait s t a t i o n s were piaced i n 1351, the number incrcaslng t o 773
in 1957, declining t o zero i n 1978 and numbering 1 4 i n each of the
years 1979/83 and 1980/81.
97.

Hr. Gurba cnarac;eriznd ihe ,Alberta jredaror control 7rogram as
successful, explaining thae i t s object was not t o exterminate coyotes,
b u t t o r g d u c ? predator damage to t o l e r a b l e l e v e l s .

He a t t r i b u t e d

the success of the program, notwithstanding the steady decline in the
number of 1080 meat-baic s c a i i o n s , t o the use of strychnine d r o p - b a i t s ,

cyanid? p n s and c h f hi r i n g by the ?ravine? of 2i;hx
;?2c;alis;

in

1372-73.

r 8

(-2

a;s?rxzi

32'

zcs:

pr2da;or c ~ n x r ~ 1,

123C ma:-bai:

wers placed i n souzh*~es;ern A l b e r s z :;her? cnz-'hjrd

,I

jrl~

cf , h ~ snesp

p r o d u c t i o n i n t h e P r s v i n c e was c o n c e n t r z ~ eand
~ which bad a h i g n
level o f c o y o t e s .

He s t a t e d t h e 1080 s t a t i o n s >/erg an a r e a conxrol

program, w h i l e c y a n i d e guns and s t r y c h i n e d m p - b a i t s were us2d i n
s p e c i f i c c a s e s t o t a k e ki 1 l e r c o y o t e s .

He e s t i m a t e d t h e 3 v z r a g e

number of c o y o t e s taken a n n u a l l y by 3ach 1080 o a i r s x a t : o n , i f ti.,?
b a i t was c c m p l e t s l y consumed, a t 3 0 , zven tnough o n l y 20 c o y o t e s
c o n s i d e r e d t o have keen poisoned by iC30 were found i n t h e i a s ; f i ~ "

years.

,Yr.Gurba i n d i c a t e d c h a t e SL3s
objects.

2nd d 2 t e ~ i n a ; i c n 3y a

'ri75:7

,7
I ,

.

fI;,c

S z ~ 3 CAZT
;
S X R ~ S Sr

2 $ ; j ~ " ? f ' ~

-11 .

;?2 3 : 33 ZI124

d a r a c a l l e c r e d by 'he 'iycrni ng Crop znd Liveszock 2epor'i n g S s r v i c e
on lamb l o s s e s co c o y o i s f o r the y e a r s 1070 :a 1980 i n c l u s i l i e , which
snowed, i n z e r a l i a , I O S ~ ~ofS 84,5GO

3r

8.5 p e r c e n r of lambs born

i n 1974, 72,000 o r 7 . 8 9 e r c e n t of lambs born : n 1975, 65,000 o r 7 . 7

p e r c e n t i n 1976, 51,000 o r 6 . 1 p e r c e n t i n ;077, 43,500 o r 6 . 1 lpercent
of lambs barn i n 1979.

While he acknowiedged c h a t t h e r e wer?

f l u c t u a t i o n s i n l o s s e s of 1 ambs t o c o y o t e s i n o t h e r y e a r s hi ch

CJU!~

n o t be a t z r i b u z e d t o the 1080 bai t i n s p r c g r m and w h i c h he could n o t
e x p l a i n , Nr. CrosSy maintained t h a t :he r e d u c i i o n i n l o s i ~ sdur: ng t h e
h was due a t
p e r i o d 1976 ~ h r a u ~1973

122s:

i n part co u s e o f b a i t

5:at:sns.

114. ;!r,

Harry L a a t i , a Harhematician, P r e s i d e n x and Chief S c i e n t ;

ST

of

Loats A s s o c i a t ~ s , I n c . , a f i r n s p e c i a l j i i n g i n o a r h e m a t i c a i dna1ys:s
and modeling r e l a t e d t o p o p u l a t i o n dynamics, h o s t - a r e a napping,
ri s k l b e n e f i t assessment

igr

? e s t i c i d e s , p e s ~ i c i d ed r i i t and o t h e r

n a t u r a l r e s o u r c e r e l a t 2 d phenomena, and a w i t n e s s f o r USGA, j u b m i c ~ e d
t h e r e s u l t s of a n a l y t i c e v a l u a t i o n s of animal p o p u l a t i o n dynamic;
(modeling) based upon a c t u a l b a i t consumption of 1080 l a r g e - b a i t s a t
640 s i t e s f o r which d a t a was a v a i l a b l e i n Wyoming d u r i n g t h e 1976-77

period.

The a n a l y s e s were performed under a c o n t r a c t with t h e Animal

P l a n t Health I n s p e c t i o n S e r v i c e (APHIS) of t h e USDA.

Expected sheep

and lamb l o s s r e d u c t i o n i n Yyorning was computed by a g g r e g a t i n g
i ndi v i dual b a i t s i t e s i n each count;,y i n t o Crop Reporting D i s t r i c t s

8I
(C2Cs: and J:/

]ear ;erj;c

zl/alliaz?cg or :rcj@,--- L ;??

3

i s \ i e l s i - a n n i g :%

i

,
::~:1

.

z z r ; u , ~ c ~ i o nz v e r a czn-

, ;licala

per

2i.o

f i e i d gar?er?d s a i z consdxpclon daca for 2acJ 3 2 .

-.
I

r - n j z s?

ne r2sul :s

indicatsd tndc popuiaxian reduction of c o y o t x ircm 1080 b a i c
placements in high sheep vu1nerabi:ity areas could r e s u l t in sheep
l o s s r2duction estimated t o be approxirnaieiy 7,000 sheap and lamb
per y e a r .

2e defined h i g h v u i n e r a b i 1 i c y areas as ar2.s

were ?laced
coycte densicy.

tihers ha r t:

on ajsuned reda at ion 1 ~ ~ :3
~ s2 h es e ~~ c ad h i ~ h
The nodel i s hypothecfcsi , -here ' ~ e i n sqo rs.'

method a i zeasuri ng p o p u l a t i o n (coyote 2 n d non-target) d e n s i t i e s

f o r the who1 e a r e a , r s o u r c e (apparent1y ? r e d a v a i 1 a b i 1 i t y was
assumed o; be cgnstanc and b a i z consumotjcn Sy non-car2ec.s was
2 s t i m a t e d bas2c o n zssessiiients o f baic 3ctracr'vcness cc sucn saecies,

b a i t vi s i ts , cansumpti on and popu?a r i on dens i c i e s .

,Yr. Loa ts

i s s t i f i e a t h a s t h e model co~ila be used to ~ 2 cbe
s ~actual use o f
1080 over a cen-year period in Wyoming, ?rovided data on g a i t

consumption r s l a t i v e t o d i s t r i b u t e d s i ; ? s , population d e n s i z y , z t c
were a v a i l a b l e .

He acknowi2dged t h a t the output of the rncael

depended on the v a l i d i t y of inputs and t h a t inputs such as e f i s c t

o f 1080 on population dynamics of t a r ~ e tand non-target s p e c i e s ,
animal s p e c i f i c data inputs, trapper ff e i d s x p e r i e n c ~ ,locations
and d e n s i t i e s of t a r g e t and non-target species, a t t r a c t i v e n e s s o f
b a i t s i t e s and t h e i r probable e f f e c t s on species, animal presence

and abundance, were s u p p l i e d by animal managenent experts., i . s . ,
jr.

L y l e : r - ~ s ~ and
y
i o i i i i f l ~ u ao f ,;;niS.

nt

also

acknowledged t h a t dispersal or m i gration o f coyotes was not considered.

1

r . George 3 . 30s'. , a reci red a m 1 oyat?

31

:he

'\is r i n: 23 Lie2r-s

exper.ler,ce i n rhe (Anizal Ozrna.32 isncroi Pragrarn, i;?s;den;

3f

n e

Yational Animal gamage Conirol Association, Inc. (YAGC) and a
witness f o r the Association, c e s t i i i e d that -he us2 of Ccmccund 1080
in large-bai t sta-cions was e f f e c t i v e in reducing coyate numbers co
a 1eve1 where the a g i i cul tilre- b u s i ness carrnuni t i es coul d sur-iiv e .
His data on e f i n c r i v e n e s j apoeared

TO

be bascl s r j n a r i i y on :he

reduction i n the number of b a i t j t a i i c n s places i n E4S Region 2

-

(Arizona, Ccl orada , Xew !exi c o y Oki ahcna , I exas, Otah and ',dycmi ng j

from a h i ~ hof approximately 3,10Q b a i t s
approxima~eiy4,600 in 1963.

jn

i962-63 t o a law of

He indicated t n a r :he

deccreasei

number of b a i t s placed was r e l a ~ e dt o the lower nunber of requesIi
fr3m AOC iraF;?rs o r d i s t r i c t f i e l d assi s ~ a n s s(3FAs) i n the ci s ; r i c z i ,
who were in tlpe

1

XST

position ;o assess the need for such s t i ~ j o n s .

115. r , Jchn R . Zeck, P r e s l c e n t of 3ioiogical Envjranme~.ral icnsu1:ant
S e r v i i s s , I n c . , a former animai damage c3n;rol

zcjenc for the F,iS

with cver 32 years experiancs in predator control and a vfitresi i - r
Wyoming,

2~ 21

.,

r e i a t a d an i ncideni concerni ng

i

sudden inc?ease

n

coyote predation on 1 zmbs and c a ?ves i n r h e e a r l y 1950' i i n .'Icr-hwestern North Dakota near the confluence of the 8ig M i ~ s o u r i and
Yellowstone Rivers.

He t e s t i f i e d t h a t while i t aid not appear t h a t

coyote numbers had increased, predation c e r t a i n l y hzd and t h a t removal
of many coyotes by t r a p s , a e r i a l h u n t i n g and coyote g e t t e r s f a i l e d to
abate the l o s s e s .

Losses were a t t r i b u t e d t o coyote movements

concentrating coyotes in the area and a baiting program was i n s t i t u t e d

cI~s?

s=gezr.er

2s

.

r y u i a :iazs a l 1 :wed zr;d 2ac, 2 n d ~2 r e a r :r

:ili ssouri 7i.rer was a l j o 'Lre~ceu. , A c c o r b i n ~fcl ?lr. 3ec:(,
1080 t r e a t z d b a i t cgnsuned i n his assigned
greaTer t h a n anywhere

2152

ar22

i n the Uni zed S t a t e s .

-

,

;r,e

-; - _ ,-s

, ,,

t52 Z Z O U ~ L(;f

S ~ r i n gchac ~ e r i c d42s
He t e s t i f i e d t h a t

d u r i n g the next f o u r years ? r e d a t i o n i n t h a t a r a a was a t a very l o w

r a t s and t h a t 1080 was n o t uszd there che n e x t season, there being
no need for i t .

He vias 07 t h e apinion t h a t with quai i f i s a appl i c a ~ o r s

Compound 1080 was a major gosizive factor i n canid predaccr nanagesec:.
1I 11- 1 .

Nr. 'clilliam K. P S e i i e r , a a i o l o g i s t , Supervisor o f (Animal 3anage
Control f o r the FWS i n Yor-ch Cakota, having abouc 25 years 2xqeri~nce
i n predazor a n d coyote control , and 3 witness f a r Seiencer-s of ':/i
131 i f 2 ,
11/
e t al.,
t e s t i f i e d t h a t t h e y ? lIvas 1 i x t l e dcuoc :ha: k m ~ c u n a1280

b a i t j ~ a t i o n shad rzduced sne c o y o t e ;cpuiation.

Ye ? s ~ i r n a t ? d ;he

reducT'on ac aaou? cne-third o f t h e ~ o ~ u l a t i o n S. t r y c h n i n e ? T O ? - k i t s

were also used prior t o 1972.

IYr. Pfeifer t e s t i f i e d t n a z silee:, losses

t o coyotes i n c r e a s e d a f t e r 1972 going from 0.25 percsnc i n 1972, t o
0.42 percent in 1974 a n d 1975, 0.48 p e r c e n t i n 1977, and then declining

t o 0.13 percent in 1979 and increasing to.0.33 percent and 0.28 percent
in 1580 and 1981 , r e s p c t i v e l y .

He was of the o p i nion that these

f i g u r e s , w h i c h include only ADC confirned losses, supported the

effectiveness o f 1080 i n reducing predation.

He attributed che decline

i n predation a f t e r 1977 to a harsh winter and an increased h a r v e s t o f

coyotes f o r t h e i r pelts.
. I

1 I / Mr. Pfei f e r was called a s a witness by Defenders because he
had cGducted or supervised a survey of North Dakota ranchers using
guard dogs for predator control.

New f l e x i c ~ ,and

2

wi tness f o r ',4ycrning,

2t

a1 . , x s t i f i e d tha"s 1CEO

large Aai i :tations were a n 2 f f e c t i v e method f o r reduci ng coyote
predation on sheep, goacs and calves.

He based c h i s conclusion on

the f a c t t h a t p l aci qg s t a i i ans resul tsd i n fewer signs o f coyores ,
,

-

such as tracks and droppings, :ewer damage c3muIainis and a rzdticed
catch o f coyctes by trappers.

M r . Anderson iir s t beczme i n v ~ l v e d

in the placznent o f 1380 b a i t s b t i o n s in 1362 i n an area satith 3f
che Edwards ?lateau i n Texas and which he referred t o 3s the "coyotz
factory of the Uniztd Staces. "

He a l s o ?lacad and supervised z h 2

p i acenenc of bai c stacions in Colorado and U"ch d u r i n g che jeriod

1964-67. He t z s t i f i e d chat a f t e r t h e ban on the us2 s f 1289,
i cdicators o f ccycce ;3opui a t i o n s increaszd, c i t i ng a n i ns-tance i i.1

Eray County, Texzs where 40 he1 icoctzr-hcurs o-f h u n t i n g resu 1 ted ;n

a huge take o i approximaceiy 290 coyotes.

He asszibTea tha-, whi l e

1080 was i n use ?pproximately 25 to i O percent o f t h a t numDer c7

coyoces would be expectod t o be taken by t h a t dmcunt s f aer'al
hunti og .
119. Dr. Samuel Beasom (finding 95) conducted a study i n 1975 and 7376

on the e f i s c t s of prsdator control on Angora goat mortality i n
northern Zavala County, Texas i n the S o u t h Texas P l a i n s .

Surviva-

,

b i l i t y and productivity of Angora goats were compared between a
225-hectare treated and a 207 -hecQre untreatsd (no predator control )
pasture.

The study area i s known t o have a heavy i n f e s t a t i o n of

coyotes.

The two pastures were separated by seven kilometers.

. .

,Vai-maii m srzdzfsrs .rers ~ e m o v e d f r x a ! ,55C h e c z a r ?

ine treated :asiure

-

,

2 n d 2 1 . s i:n. j u i f e r

-?re2 i n c l !ic: ng

zone a n rhrer i,ldss. Six:;/-

nine coyotes, 1 1 bobcats and 32 smaller n a m a i i a n predzi3rs :Vera
k i 1 led on i h e tr2atier;c araa i n 1975.

Tile cake in 1976 was 63

coyotes, seven bobcats and 32 small e r predaiors.

Predaizor ac;; v i ty

o n the t r e a t e d a r e a , dersrmined by s c a t counts, was 80 percen:
chan chat o n ihe untreated a r e a .

1esi

Pradation 1 0 s i e s o n the untre::ad

9asTur-e were 33 percenr c i ?he kid c r c o , u h i l e nnkncwn l ~ s s e s
(disappeared without a t r a c e ) t o t a l e d 52 perc3nr ci t h e k i d croo.
Ccnparahle f i g u r e s o n cne t r e a t e d p a s a r e were 16 percent 2nd d3
rercent respecij-iely .

:dost o f t h 2 unknown losses were a c t r i b u r ? <

t o 7redators because of the prosence of coyote s c s t i ccntainlng
mohai r concurrent

' , ~h
:i

an animal ' s disappearance, because s u r v i v a l

r a w s were hisher gn tne creatod area and becaus2 d i s e l s ? and
abnomai it i e s zrnoncj rhe ? i d crop Nere rzre.

?r.-dation sf scu::

goats yas 24 percent of ihe iiock on ihe untreated ?asiure and zero
on the i r e a t e d a r e a .

The study concluded t h a t i n t e n s i i e ?recator

control could i u b s t a n t i a l l y increase the sur-iilial rat. of kids and
goats, bu? vas i n s u f f i c i e n t ra curta:!
when conducted on a small s c a l e or a:

large losses t o pr2iafion
d

level no g r s a t e r than t h a i

in the study.
120. Basic to the oqposi tion t o the use of Compound lC8O i n large-bai t

s t a t i o n s i s the contention that- heavy and sustained exploi taizion of
coyote populatfons merely r e s u l t s in increased reproduction, iower

the sane and char zrianprs xs sappress c c y o ~popularians over ,qide
areas are cauntzr?roduc~iveand aoomed

~3

Tailure.

Opponents of

1080 a7 so contmd t h a t t h e r e is no demonstrat2d r e l a i i o n s h i p beween

coyote ?apulations and livestock predation.

The c o y o t ~t a k ~ n;er-

nan-years-of-2fi3rt index develcped by 3 r . 'dagner and his csnclusisn
c h d t 3 3 2 of 7C80 apoo3rad co s u o p r s s coyote ~ o o u i a r ' c n s i n s?e

e a r l y period o f i t s use i n ine Scares of Icaho, Yontana, iyaning and
Ucah has previously been aentioned (finding I C S ) .

Dr. Wagnsr n o ~ 2 c

t h a t the sopulation reducrion did not 3pcear t o be l a s t i n g and thac
there was no corresponding reduction i n ~ r z d a c i o n . it snoui d :e
noted , however, chat Dr. 'blagner acknowl edged

: " 2 ~appl

icasi on

9T

intensive ?reciacar control techniques i n z r z ?I s czuld degress csyoce
popuiations and reducs ?redation 1 osses .

Dr. Grand.

( findi n~ 31 )

impliedly recognized t h i s f a c t when he excused the heavy precarion

losses o n the Cook Ranch i n Montana as a "no c a n t r o l " study.
1 2 1 . As evidence t h a t coyotes can be removed f r o m a l3rge a r e a , the
Edwards Plzteau area o f Texas, which was l i t s r a i l y coyote f r 2 e during
the period 1930-70, i s frequently c i t e d .

Coyotes were reportedly

removed from the area by the use of s t z e l t r a q s , strychnine, and
hunting, aided b y fences constructed f o r livestock c o n t r o l .

I t is

n o t c l e a r , however, whether t h i s was an area of h i s t o r i c a l l y large
coyote populations or whether the principal predator removed was not

t h e red w o l f , an animal l e s s adaptable and more e a s i l y extirpated
than t h e c o y o t e .

&

122,

-

s x a y ;uhicn ?; l a - i o f i a i

par-, 07 ni;

The s t u d y , c o n d u c t z d d u r i ng the peri c d

1974-78, examined s e p a r a t e c o y o t e p o p u i a t i o n s i n the Curlsw V a l l e y o f
Utah and I d a h o , which -,vas s u b j e c t t3 n o d e r a t e t o h i g h e x p i o i c a t i o n ,
a n d on ",he Idaho i?lar,ional Engi n e e r i ns L a b o r a ~ o r y ( I ? I E L ) , l t ~ h i c hwas

c o n s i d e r e d t o be u n e x ? l o i t e d o r a t

123s-t

moderafely so.

-,

ine stzdy

a r e a s a r e a p p r o x i m a t a i y iGC km a p a r t and ~ n v i r o n n e n e a l l ys i m i l a r .
A v a i 1a b i 1 i t y a n d uti 1 i z a t i o n o f pr2y were a ?so simi 1 a r .

Nei ?her

s p r i n g n o r f a l l , d e n s i t y esiimaces oF c o y o I e s ' ~ e r ?s i g n i f i c a n t l y
d i f f e r e n t betwen a r a a s i n a n y s i v e n y e a r o r cvsrall. Huncing
a c c o u n t e d for r c u g h l y 39 p e r c e n t of a l l a d u l t c o y o t e i o s s z s and 54
p e r c e n t G? j u v e n i l e d e a z h s j n the Curlew Ya112y.

About 25 percznc

o f adui 1 deaths and 12 ?er-c?nx o f juvenil? d e a t h s were d u e co hunting
i n the INEL.

Or. C a v i s o n c o n c I u d 2 d t h a c his s t u d y showed c h a t

s u b s t a n t i a l e x p l o i t a t i o n would n o t be e f f e c - , i v e i n reduciny c o y o t e
d e n s i t i e s o v e r wide a r E a s , b e c a u s 2 ? x ~ l o i t a ~ i o lno s s e s wcuid ke
q u i c k l y o f f s e t d u r i n g f a l l and w i n t e r by r e d u c e d l o s s 2 s t o o t h e r

causes and by r e d u c e d m i g r a t i o n and are further o f f s e t the f o l l o w i n g
s p r i n g by i n c r e a s e d r e c r u i t m e n t ( b i r t h and immigraticn) . He c o n c l u d e d

t h a t i n c r e a s e d r e c r u i t m e n t would p r e v e n t a n y l a s t i n g r e d u c t i o n i n
coyote density.

D e s p i t e a p p a r e n t d i f f e r e n c e s i n the l e v e l s o f

~~u,;,zITexpi01 i a i 1 0 f l ,

m e r e were

t10 s t a c i h i l c a i

I Y s i g n l r icane

--

s i g n i f i c a n t differences in hunting caused deaxhs o f juvenile coyotes
b e k ~ e e nthe t-/o areas.

He acknowl edged -,hat conventi ona1 1,lrisdom

among trappers and b i o l o g i s t s was t h a t juvenile coyotes had lower
survival r a t e s than adui ts and (were mar: 'vul nerab;2
He a l s o acknowl2dged t h a t no e f f a r t was made

coyot? concrsl on a r l s s adjacent o:

c3

~2

sx?lo't3cion

2 v a l u a z the ievei o f

rhe s x d y areas s r d :?a:

d z f i n i ng any cgyote o r di 7 d l i f 2 p o p u l aci on Has szmewnat arbi v a r y .
9.

i23. Testimony t h a t coyotes wers primarily scavengers, re!zctanx ra
r i s k injury by a t t a c k s on animals of any s i z e , ,das g i v e n by iioce
Ryaen, an author and a ;vi tness f o r F r i 2cds of Anina:

5 ,

Ific. $,rno had

spent over rwc years clos21y observing packs o f coyot2s i n Wonczna
and ' d y m i n g .

I t appe?rs, h o ~ e v e r , thac Ms. Ryden' s observations

were made primarily i n the winter months i n areas of heavy snow
c o v e r and t h a t animals the coyotes did not a t t a c k \were adui t e l k ,

d e e r , bighorn sheep and a n t ~ l o p e ,lwnich would nomaily b? of
s u f f i c i ~ n ts i z e t o defend themselves 3 g a i nsc c ~ y o t 2 s . 2 e r observafions
*Merg made on packs o f coyotes in Yellowstone National Park and

National E l k Refuge and thus the coyotes were protect2d fram human
exploitation.

She acknowled~ed t h a t during the spring and summer,

coyotes were primarily predators on small animals, such as rabbits
and rodents, and t h a t they were opportunistic feeders and did k i l l

t h e socjzl or;.zni z a t i 3 3 , a z c ! ~hjzr2rchy

2nd < ? ~ r i < ~4
y j igcer.;j!,es
.
*

s~abiiize3 t a iower l e v e l , wi-ch the l i k e l y cansequence of a lcwer
r a t e of 1 ivestock predation.
124, D r . Franz Camenzind, a 3io'iogist and
Animal s , T'nc. ,

Inno

3

i ~ i ~ n e sf os r Friends o f

has conductxi s t e n s

r 2 ~ 2 z r c i ;3n CZ:IOC~~

?opuiaticns s s e n t i a l l y f r w o f man-caused ~ o r t a l i ~ ys u, p p o r r ~ d
tne thecry t h a t a s ~ a b l e ,unex?ioiz2d coyote ? o ~ u ? a c ; o nw o u l d
1 i kely lead t o 1 ower rates of 1 i v e s t a c k predarion.

;3e ooszrvea

ccyotes over an eight-year period o n the National E l k ? e f ~ g enear
Jackson dole, Wyoming.

He 2 s c i f i e d :hat

3 s-,abl2

coycle2 oopu;at;on

c o n s i s t x l o f social unizs or packs of from four t o s i x a d u l ~ sbav-,ng
c l e a r l y x f i ned nierarcnies o r peck orders and we! 1 deii ned,
t e r r i t o r i es .

3e 2xpl ai nec! t h a t w i :h ixoder3ce t o h e 3 ~ yconzrol , t n e

social s t r u c t u r e becomes d i s r u p ~ z dor destroyed, the population i s
i n a constant s t a t 2 O F f l u x , t e r r i c c r i e s a r e not oucl ined or aefsnded

and t h a t the r g s u l t may be nore prey k i l l e d per coyote tnan w o u l d oe
the case i n a s t a b l e population.

Contrary co

5cn2

theoriss,

Dr. Camenzind did not find t h a t a decrease in coyote populations
resulted in an increase i n l i t t e r s i z e .

He acknow7edcjed t h a t t h e u s 5

of poisons could reduce the number o f coyotes.

125. Mr. Eugene Allen, Administrator o f the Wildlife Division of the

btontana Department of Fish, Wildlife and Parks and a witness For the
S t a t e , t e s t i f i e d as t o the r e s u l t s of a study of coyote ecology

I 1 with neck co1:ars.

Coyotz density i n the approximatsiy 1C0

square-mile study are3 was deternined co average approxi:na~s:y one

per square-qi l e during the summer.

The study of cayofe r,overnegTs

cancluded ? h a t coyoizs cc~uldgenerally be c l c s s i f i e d in13 one o f
four soci a1 benavior 110d2s:

den breeders, den su2er nuxer?ries,

nonads and d' s a e r s ~ r .s ;en b r e s c t r s lrrere ;~cu1 t p z t e n - 5

3f

a

::7 ~ 2 7 .

Den supernumeraries aere aaul t s and prooabl y p i p s f r m /erea d u l t coyot2s, which l z f ' ~the den area

?stab1 i shed 1 arg: :rzvei

are2s.

3i sqer;al

2nd

c s y o ~ z swere young,

~
supernumerary or i njurzd den b r e a e r s wni cn 2 e r ~ z r e n t i y1 e f the
study area.

,,,,l

nnnvl

Den coyotes c c n s t i t ~ t e d~ p o r o x i n a t e l jLO 3ercant of tne

a t i cn a n d naz nome ranses 07 three or four square ni 1 es .
I

coyotes ranged over areas from 30 t o 50 squar? ni 12s.

3:hsr

Dispers!ns

coyotes were k i l l e d by hunters a5 distances From 2 i s h t t o 95 q i l e s
from den s i t e s .

A conclusion of the study was t h a t an e f f e c t i v e

coyotg control progran must have the capability c f addr2ssing s i t e s p e c i f i c problems caused by den coyotes with a very small home range

or s i t e - s p e c i f i c problems caus2d by a nomad coyote or dispersing
juvenile coyotes. P r ~ d a t i o ncontrol was practiced on the study area
and i t i s questionable whether t h i s study can be said to c o n t r a d i c t
the Ryden and Camenzind theories r2ferred t o in the preceding f i n d i n g s .
126. There i s c s n f l i c t f n g evidence in the record as to whether coyotes

become bait-shy.

Ur. Crosby (finding 7 1 2 ) asserted t h a t the

existence of such shyness was pure speculation.

He acknowledged,

coyotss f o r one r?aszn o r anoc5er and t h a r ;. r sne ~ ~ s ~ ho fo coyo:?
a
e

concrol was used c o n s t a n t l y , b a i t - s h y n e s s could d e v e l o p i n some
c i rcumstancas.

Mr. Richard Randal 1, a f c n e r OFA for the F,iS,

Ncrth Czntral F i e l d Representative f o r Oefenders cS Wildiifa and

a w i ~ n e s sf ~ Defenders,
r
-+/as of opinion t h z t ccyotss d i d learn t o
avoid o r develop 3n a v e r s i o n f o b a i r s .

Vr.

?obert ? u r ~ e o ,an

AGC agent f ~ t hr e Sobth Dakota Q e p a r a e n t o f Game, f i s h and

P a r k s :vi-lh 37 years

3f

~ x p e r i e n c ti n trapping and a witness f c r

the S t a r e , t e s t i f i a t h a r he would have to be convinced of any such

shyness, because a f t e r consumjng the b a i t no learning sxperiefice
by a coyote was possi b l ? .

i t does a p p e a r , hcwever , tha:

'he

e f f e c t i v e n e s s o f b a i t s declined over t i n e , wnich has been analogized

t o r e s i s t a n c a c o pesticides developed 5y c5rxain i n s x t s .

Yorzover,

2r. Xajzr L . 3 o d d j c ~ e r( T i n d i n g :GO) t z s z i f j e d -,ha:: c o n ~ i n u c u siise
o f a p a r t i c u l a r baiting system resu? t s i n development 07 cgyote

popularionz with a high proportion of coyozes n c ~a t t r a c t x i t o m a t
b a i t i n g systsrn and cnac by 1964 i t Nas widely accepted snaL 1C80

large-Sai t s were unacceptable t o sotTe cayot2s.

Issue 3
127. Testimony as t o t h e e i i ? c t i v e n e s s of dmning, shooting, trapping

and snaring i n reducing predation was remarkably consistent whether
f r o m proponents or cpponents of the use af 7080.

:cr:z

SL3;tncnc

:""S., E.

(*:e?? 2j5fsc:'

A l l seemed t o

:;73?.+ :-. ,

i+. , - A < - 0 ,
,
,,

,,

.

regarded as a jclution t s the ? r o ~ l e ms i gredarion.

For ?xampie,

Hr. Randal 1 (finding 1 2 6 ) described che process of denning, t h a t i s ,
locating the den where coyote pups a r e bein!
tracking of z d u l t coyotes.

reared, 2s requiring

Cejending zn c o r r a i n , t h j s crsck'ng vay

be very di f='cul t and ~ i m ecsnsilrni ng and, in m y event, roqu; res
e x p e r i e n c e and s k i l l .

4 t a b l e in evidence, r e f l e c t ; :taf

6 . 2 9etcenx 1 F coyotas x k e n cy ,4DC rrersonnel of t n e ?AS
by denning.

i n 1976

ere :aksn

Or. IdaCe t e s t i f i e d t h a t removal of denning pairs of

coyotes o r t h e i r young may, and frequently does,
?rodation in 1 scal i z d a r e a s .

;Top

1 ives;sc!<
-.

This isstimony was icnr: n e d by

Yessrs. F. Robert jendersan and Edwdrd K. 3oggess, / r ' i l d l i f e 3 i ~ l c g i ~ t i ,
Coooerati11e Extension Service, Wi 1 dl i f e 9arnage Control , Kansas. S t a t e
121
dni versi cyand witnesses f o r M e n d e r s .
128. Aerial hunting o r gunning i s probably t h e m o s t e f f e c t i v e way of
131
Use o f t h i s method has s i g n i f i c a n t l y increaszd
shooting coyot2s.

since the 1972 order sus7ending the use oi toxicants f o r predacor
control

.

A tab1 e r e f ; e c t s t h ~ in
t 1975, 4 0 . 2 percent ( 2 8 . 6 Fercenc

by helicopter and 11.6 percent by fixed-wing a i r c r a f t ) o f coyotes

taken by ADC personnel were shot from the a i r .

Terrzin and heavy

Mr. Boggess has changed his ernpioynent and i s presently employed
by t h F ~nnesota
i
Department o f Natural Resources, S t . Paul .
12/

-

i 3 / 311~ccingo r ~ ; u n ; i n g wi1a;ir.e i i a m he a i r - 1 5 p r o n i o i t e ~2xcepc
unders'tate authorization or per mi^ (16 USC 3 4 2 j ) . Kansas and Arizona
have not authorized a e r i a l hunting of coyotes.

h i d i n g p l aczs and :.+us r l n c s r aeri ai. iunx: 19

.
-; Y ? T T ? C : ~ I ~ ~ . ,~~Z::ST

conditions aay a l s o prevent o r i n n i ~ti a e r i a l fiuncizg o f coyozes.
iiun ti ng coyotes from f i xed-wi ng a i r c r a i t can be hazaracus .

>It-

. 2andall

(finding 1261, who while an FWS e ~ p l o y e e ,shot hundreds of coyocss
f r o m the a i r , having been involved in b,ro plane t r a s h e s , 3nd

Mr. ;?awthorne ( f i n d i rig 109) a ? 1 udi ng t o a f a ~ a lc r z s h
i n New Mexico.

05 d n AOC 71 ane

U s 2 of h e ? i c o p t ? r s i s probably thc ,xost 2 f f e c t j v e and

l e a s t hazardous way cf hunting coyctas f r c m :he a i r .

Gperazins a

he1 i c o p t ~ ri s , however, very expensive, a s evidence i n the rscord i j
t3

the e f f e c t t h a t t b e hourly c o s t of such opera5'on has r i s z n frcn

590.00 zo as high as 5375.00 during tne l a s t e i a n c t o ren y e z r s *

Aerial hunting i s , o f c ~ u r s e ,s e l e c t i v e t z c a y o z s s .

Exx2nsi1ie f;yi rag

wnereby every coyot2 observed i s rhoc, i s , h o w e v e r , not s e l e c t i v e
coyotes depredating on l i v e s t o c k .

Mr, Randall t z r n e d s:

c3

"war on 'be

species" and a s s s r t e d chat i t d i d n ' t n e c s s a r i i y solve a p a r t i c u l a r
rancher's predation problems.
129. Coyotes a r ? , of cours?, h u n t ~ dfrom the ground.

ADC personnel s h c t

6 . 3 pwcent of coyotzs taken i n 1975 from the grcund.

A n e t h o d oS

luring coyotes within gun-shot range i s by use o f a c a l l , which

mimics an animal i n d i s t r e s s , thus bringing a coyote in search o f a
meal.

Coyotes a r e also hunted by sporxsmen and t h o s e i n c o r e s t x i i n

t a k i n g coyotes f o r t h e i r pel t s .

Herders and ranchers f r e q u e n t 1 y carry

r i f l e s and shoot a t coyotes t h e y see.
-

-

i t i s un L I t e l y enat

many--coyotes

While t h i s scares coyotes away,

a r e ia;cen i n

L n is

manner.

13G. Tr2pping by tnle IS? o f s:20;

-

err2czivz rechod o f pr3ca;or

c o y o x ~ staken

by AGC

le3-nolli Irzcis i s a xrz61 ;:~na7 and
conzrol.

In

7 47,-

IY/O,

37 Gercenx of

personnel were taken by t r z p s .

frequently become inoperable i n

1~1-1
and

-I ,r-a;s

freezing +leaxher, ar?

frequently .disturbed by livestock and non-target animals, requir?

considerable ski71 a s t o p l acernent and require constant chec!iated
by a coyote or other animal tugging on an attached scent or l u r e ,

expels a charge of sodium cyanide i n t o the animal's mouth, k i l l i n g i t
almost i n s t a n t l y .

The 1'4-44 i s q u i t e s e l e c t i v e t o coyotes and foxes.

I n 1975, 6 . 3 p r c 2 n :

by t h e 3 - L l .

problems

ltii

:-s.c@n 3y .j2C 29r50373;

2 r ' C:;ICXS

:,3r'?

xkzp,

.
5cne s c i 1 conci c ; cns a r . c o r r o s ~ v ec a u s i n g cecnzn: ca

.I

t h the ?I-44 and heating and cool ing of ,e t a t : a s

3

fai 1 ure,

asserzing ;ha< they have since l2arned t h a t there i s no dosage a ?
L i C L suiTicient t o e f f e c t coyote behavior t h a t cannot be d i r x r e k

b y them.

14/
-

These were a l l laboratory or pen t e s t s , na f i e l d t e s t s

having been conducted.
135. Dr. Carl Gustavson, a Research Psychologist, Associate Professor o f

Psychoiogy a t North Dakota Scate University and a witness f o r
Defenders, c i t e d he r e s u l t s of a szudy he ~ a r t i c ' p a t e d i n on the
3,000-acre Honn Ranch i n Washington S t a t e as demonstrating t h a t
aversive conditioning using L i C L laced b a i t s could be e f f e c t i v e i n
reducing predation.

The s t u d y , begun in January 1975, involved the

placing of 1 2 b a i t s t a t i o n s u s i n g two types of b a i t s :

one of dog

food laced w i t h LiCL and wrapped i n a sheep hide, and the second,

l a / . This conclusion was based on research conducted by Dr. S t ~ l a r t
~ l l i n s j f i n d l n gi38, i n f r a j .

'

carcasses of shee?, ,,vn;cn h z c 'Ied of natural i a u i a s , * e r e in;ected
8

.

b a i t and the solution i n j x t z d i n t o
8 2 . 4 grams of LiCL p e r l i t e r of d a t t r .

Dr. Gus tavson i ndi cat2d t h a t

he would recamend using a s l i g h t l y lower dose of LiCi a t pressnt.

The study conducted through Xay 15, 1975, suggested a reduction i n
predation lossas of sheep
report o n chis s:ody

07

-from 43 cerc5nt Co 50 percen1.

-7

.r,e

indicasss t h a ~:he range o f oredaaiion r9duction

was from 30 percent t c 60 percent.
of the r a n c h e r ' s pr2dation

T h i s was based an a ccnparlion

1 0 5 ~ 2 sfor

zne preceding three years.

wide v a r i a t i o n i n ~ o s sbii e predaijon reductjon was z::riLu;ed

uncertainty as i a (whe~herparxicglar losses 'were due

XI

Dr. Gusiavson acknowledged that because of the i n a b i i i :y

The

:s

coyotes.
c3

i n c o r p c r a ~ eacequaie cantrois, i h e j t u d ~d j d n o t canclusively
o s ~ a b l i s h:he e f f i c a c y of aversive canditisning i o deierring
predation.

Yoreaver, a dispute arose between the reszarchers and

the rancner regarding the determination of coyote k i l l s and rh?
r e s u l t 5 of t h i s study were l e f t i n d o u b t .
136. Dr. Gustavson a l s o c i t e d a study i n which he p a r ~ i c i p a t e dconducied

in Saskatchewan, Canada.

T h i s study, conduccad over the three-year

period 1976-73, involved the d i s t r i b u t i o n t o ranchers of ground sheep
meat wrapped and t i e d in sheep h i d e laced w i c h LiCL a t the r a t e o f 6

and 4 grams per 100 grams o f b a i t .

Ten flocks having a t o t a l mean

s i z e of 10,508 cornpl eted t h e three-yezr t e s r and f u l i i l I ed requirements

Analysis cS varianco i n d i c a f ~ d caaz

1977 and : . 5 2 ;erz2nt i n 1972.

the reducticn i n losses to p r e d a a r s was s i g n ' f i c e n t .

3ecsuse flock

s i z e s f o r each ranch over he four-year periad ar2 given i n terns a?
means, while the rsported p e r e n t a g e s l o s t to coyotes werz averaged,
i t i s not possible t o detsrmine acziial 1oss2s frsm bass siicmicr2d.
The jtudy concluded, however, char the evaluation did not zllow for
the speci ficacion a ? prggrzrn ~ 1 a r A a 1 ~
responsi
s
ble f o r r-he r x u c z x n
i n losses and t h a t f a c t a r s such as a possible incrnas2 i n nccsers

gf

coyotss taken f o r t h e i r p e l t s , possible bias o r 2rror i n c e t ? m a t i z n

o i coyocs k i l l s ,
It

*Has

and

activities

3n

da- + = , A
the ranches c o u l d not Be sva111

L U U

*

also nor-xi :hat, facrors such as r3?eilancy r2';ker 5hzn

avers i ve condi ti cni ng may have been i nvol ved.
137, Dr. Gustavson wai c r i t i c a l of the study referred t o Sy y y . Ccnnojly
(finding 135). Hi s c r i t i c i s m , however, was based on a 1 it e r a l reading
of the protocol o i the s t u d y . a s "zhe t e s t s i t u a t i o n 5eing repeated
d a i l y unxil each coyote had k i l l e d a n d f ? d on thrze or more jackrabbits a n d one o r more chickens."

3 r . Gustavscn contznded t h a t the

number of animals t o be k i l l e d was established by the ~ r o t o c o l ,t h a t
there was no dependent variable and t h a t i t was inpossible f o r the

two numbers t o d i f f e r s i g n i f i c a n t l y .

Because there i s no i n d i c a ~ i o n

t h e number of chickens a v a i l a b l e to the tredtiient group was 1 imi t e d ,

t h i s criticism i s not valid.

--

.-

E l 1 i n s , a 2€s?arch ?sychci cgi s t , ?rofes;or o f ?s;/choI osy a -

California S t a t e Col:ege, San Sernzrdino a n d a witnsss for Defsnderr.

I n 1976, the f i r s x year of the study, two hpris c f sheep ;yere
evaluated, one i r o n 3 , O C G to 7,OOg head, and :be ather numberin5 'rcm

2,COO to 2,500 head.

3 2 i t (sheep) c3rcassss were i n j e c t e d ~wich a

solution o f 450 grams of iiCL or 225 ; r m s o f sodium chiorid?
h
t3

i in 1

i t s o

r

3ai:s

'der? ?iacgO i n areas tnown

be Frequented by c o y o t ~ s . -'Iner? were a s u b s ~ a n t i a lnumber GP

k i l l s i n Herd Xo. 1 during t h e f i r s t seven weeks c i t5,e s t u d y ,
followed by
study.

marked re4ucrion during the rernai n i ng 11 

m

3
C

D

U-

0

3

m

3
(I,

C

2

-A.

C
P'

V)

5.

nCu

a
u3
-5

it

(D
tn

3-

LA
2.

<
tD

:c

(I,

n

(/I

3-

D
-..A

IU

-

(I,

-

1.

135

zonths cf

1

115.

2 ~ 2nd
2

has r ~ ~ 7 3 c c:rd rcfdnd2d :he ; d r c , ~ a s ~~: r j c scn

Ms. de ? a Crl.iz c h a r ; s $332 ezch

f 5 r h 2 r dags

and s s t j ~ z - ~ ~d k zfinua:
e

c a s t f o r food, veterinary c a r e , aegreciaxicn, ? t c . a t 5250.

:he

considers r h e average useful 1 i i 2 o f a Grzac 2yrenees t o be f r a n s i x

-

co e i g h t years fol lowing a two-year t r a i n i n g period.

146. Dr. Narion J . Levy, ?roiessor of Soci013gy. aand I n t e r n a c i c n ~ i Affairs

a t Princeton U n i 1 l e r s i ~ y 2nd
,
his w i f e J o y , r a j s e Xcmondornk dogs as

a side1 ing.

Thny obtained t h e i r firs: Xamondor i n

7

fir-

I 501

an6 cver :he

years have raised about cen l i t t e r s or approximately 60 dogs, a f
w h i c h approximately 15 have been pldceti l ~ i t hsheep or g o a t ranch2rs

in the Uni t 2 d Scalss and 'Canada.

9 . L ~ v yt ~ s t ' f i e d :ha:

guard a a ~ s&ere extremely t e r r i t o r i a l and flouid

~ 2 n dt o

'&hi l e

fn a

p a r t i c u l a r srea ii they knew the Soundarigs, they a1 so i l e n t i f i ? d
I

.I

w i c h the l - i ' d ~ ~ t ~and
~ i :a;

m fi,n

-.bc

1 2 32s

a f 3 . 3 9 2 :r: i ,,,.,

raaiices che ?ossiki 1 i :y o f in? ~ n e r g i z e ddir.5

-

!:31 Z S .

I

bji

2 e i n g gro~:nc&

J;,

conTacE , ~t hi vegetation rhus render1 ~g the fence i nefiec:i-/e.
placment of rarning signs

i s recommended,

,dhi ;e

Gr, Gates ex?lained tho-.

the pulsating current made i t unlikely t h a t any person w o u l d be
electrocuted or injured by c o n t a c t with ;he fence.

of the fence t ~ s t ~byd 3 r .

cons.istpd

Sat25

e n e r ~ i z e dand grounded * i r e s

;3

0-f

12

-.oe

configuration

31 t 2 r ~ a t i v e l ; ;

". f a e z .
a neighr o f approximately ;!\/e

An additional energiz2d wire (;rip wire) was placzd 29 cn from :ae
fence and 15 cn above the grgund.

The z l t s r n a t i v e l y anergized and

grounded wires a r e f o r !<:re sabsecuenzly a d d e d t s ,?ak?

was conduciad over a n approxjmaie one-year p e r i c d .

Alfhough cniy

three coyotss were removed from the ~ a s t u r e(by t r a p s and us2 o i a

he1 icoptzr) , a f t e r i n s t a l l a t i o n of t h e trip w i r s , Or. Shelcon t e s ~f ii e 3
t h a t not

3

s i n g i e young s o a t was ' r a i s e d , coyote k i ; ? s being con?; rined

i n same cas2s and inferred in otners and :hat ih ?fens !was c2nsidered

ineffective.

He estimated rnaierjai

f o r the 7ence 2 t 52,SOC.

1 1 S t r o b e - l i g h ~ s , sirons a n d ?rapane e x s i o d ~ r so r zon Suns l a 4 / &d i s z

been ;rsrsd ana < t i 1 Iz4d i n a i t ~ q p t it o canirol o r reduce pradaiion
by coyctes .
a 1 r?,nches

Tests by ihe FA5 uci 1 i z i n g strabe-1 ig h t / s i ren devlcls
in

Colorado, Idaho, Cre9cn 2nd Souin gakota, indicsrea

reiucea predation over a period of 5 to

id

weeks a i je\/eg of tsn

t e s t s s i i e s . The resul ts were csnsidered encsuragi n g , b u t addi t i cnal
work was considered necessary t o idenrify s t i m u l i , e . g . , i i g n c , sound
recordings, i h a ~mosr e f f e c t i v e l y repel coyotes.

Dr. Shelton t e s t i f i e d

t h a t he had inesxigated the usa of l i g h t s under f i e l d c o n a i ~ i o n sand
found them t o t a l l y i n e f f e c t i v e .

Testimony a t the hearing ivas to the

e i f e c r t h a t cuyoces soon became habitnated t o the sound o f expioders
and even used them t o locate flocks of sheep.
162. Penning o r c o r r a l l i n g sheep and goats a t night can be very e f f s c ~ i v e
i n reducing predation.

This p r a c t i c e , of course, has no effecc on

predation t h a t occurs i n the daytime.

Moreover, the usefulness of t h i s

oracticn i s confined t a farm flock operations as i t i s impractical t o

pen 1arge f 1ocks under range condi t i ons .

l a s z 40 y e a r s , frcm a h ? g h o f S6,67J,CCC i n ; ? A 2 :a a lsw o f 1 2 , 2 2 0 , 2 0 0
i 6/
i n 1 9 7 9 , i!icreasing s ; i g n z i y ca 12,941,300 in :'?El.
The number o f
shesp increased t o 13,176,G00a s of January 1 , 1982.

P5r

capita

consumption of lamb and m u t t o n is approxirnatziy 1 . 5 7cuncis annually
( c a r c a s s b a s i s ) o f chich 3 ~ e r c e n ti s i~ported. ? o r c.?i t a c c n s u n p ~ i c n
of wool i s appr0xirria~z:y one jound 3nnual1y 50 g e r c ~ n t:f ~ h i c hi s
i m p o r t ~ d . Approximat21y 30 p e r c z n t of t h e s n e q i n he Unised Staces

a r e r a i s e d i n the 17 n o s t western o f the 48 contiguous Statss
Although approxirnafely '51,000west21-n f a m e r r anb r3ncher-s r a i s z

sheep, only 21,000 o r 41 percsnt have c o m e r c i a1 z ? e r a x i ens
more s t o c k snee?.

7- 1

1 n e s 3 ?r:duczri,

o f a1 1 s ~ o c ksneep in the r z g i o n .

nowever, J w n :early

"
CI
YJ

,2f

50

137

gercznz

L a q e scale ? r c d u c ~ r sl w i tn a

i,OCO o r \?ore stock s h e q c o n s t i t u t ~o n i y 6 perc2n:

05 t h e proaucors,

b u t accaunr for 63 gercent of t h e r e g i o n ' s stock s h e s ? .

16J. Data on g o a t s nave previously been discussed ( f i n d i n g 7 3 ) .

-lexas

is

the p r i n c i g a l s o a t producing s t a t e 3 n d the n a j o r i ty a ? ggacs prcduczd
i n Texas a r e Angoras, r 3 i s e d f o r t h e i r m c h a i r .

There ? r e 2pproxirnately

800,000 d a i r y goats and 500,000 S p a n i s h or neat-cype goars i n :he
United S t a t ~ s .Texas produced 9 . 3 milli'an pounds o f mohair in 1979

worth a n estimated $ 4 7 . 4 mil l i o n of w h i c h approximately $30 mill i o n

These f i g u r e s a r e from tables included w i t h the testimony of
16,'
grill, which a r e based on USOA s t a t i s t i c s . Figures i n other
aoeumenes i r l a i a e n c e wnlcn a r e a l s o purporcealy oasea on U S ~ ArLatisz1c.s
differ slightly.

Dr.

.

by T?.xas 9 r X y c e r s f r-n m n a : r
I

. n -: 220
*
8as

I

.
-"n
bju. 3 Ji

.1 ;:n .
!

155. Tesxjmony cnzt sp-c?~un
u i i i i z a t i s n of auch s f t a e rans21anG i n :he
western United Srates requires grazing by c a t t l e , sneeg and 5 0 a t i
r a t h e r than a s i n g 1 2 species was given by Mr. Robert ii. Xznslng,
i x ~ e n s i o niconcmi s t , Texas A&M Univerii ty , Or. Czr1 :4enzi es , Res, d e n i

Oi r e c t o r

3f

Researcn a t the Tmai P&iil Universi t y A ~ rcu!
j i u r a i Reserrcn

and Extlnsion C ~ n t a ra t San Angela, and by Or. dames i. 3ownsJ ?,ange
Ecologist, Utan S t a t e University, w l ~ n e s s e sfor !dycrn:ng,

2'.

al.

.-

1.

was painted o u t t h a t c a t t l e prefer g r a s s , t h a t sheep 3nd goat; s e i a c t

some grass, b u t t h a t sneep s e l e c t l a r s e a o u n x i cf law-gra~ing
nerhaceous pl a n ~ s(:orbs) , whi 1 e goats se1 e c t 1 arge am,ounti o i
browse.

Sfleep and goats a r e abla

ia

3rs;a rougher 3 r r ~ i nand arees

which a r e more sparsely vegetated than c a t ~ e1.

5 r ~ zng
i zat-cl s ,

shee? and goats i n the ?roper combinations and a t s u i t a b l e i n t e n s i t y
not only increases the production si animal praaucxs per a c r e , b u r
tends t o maintain the carrying capacity of the land in t h a t iorbs nor.
properly u t i l i z e d become a weed problem and Drowse n o t pr3periy
u t i l i z e d becomes a brush p r o b i m .

indeed, shoo9 a n d goats can be used

f o r the control of weeds and brush, thus avoiding the use o f herbicides
o r expensive mechanical methods of c o n t r o l .
1 6 6 . Because sheep and goats can turn pasture and range vegetation and crop

residues i n t o meat and f i b e r a t r e l a t i v e l y l o w c o s t ,

171
-

the r i s i n g cost

171 Lower 1 a b o r , machi rrery , fuel , t r a n s p o r t a t i o n , ti 1 l a ~ ,ef e r t i 1i z e r s ,
h e r b i s d e s , e t c . required for range 1ivestock production a r e sometimes
referred t o as " c u l t u r a l energy."

o f e n f r g y in reien; j e d r z nas ~ a j r o v e d

of steep and gozc ,Teais r e i a c i v ? ;o ocher inea;s 3nd of ,vooi znd
mohair r e l a t i v e t o i y n t h e t i c i .

According t o

-I ne
7

U.S.

Sheep and Goat

industry P r o d u c ~ s ,Opportani t y and Limi t a t i o n s , CAST 4eport No.

9L

(May 1982), t h e potential exi s t i f o r increasi ng the production of
sheep and goats in the major range ar?as by a t l e a s t 50 percen:

ay

u t i l i z i n g the brst ava!Iaale s8chnolcgy iin range livestack zanagement,
by grazing areas not now used f o r ineep and goais 2nd by combining

it-

ai ternaxi ng the grazing of sheep and goats wi ch c a c t i e grazing .

Or. Menzies (finding 1 6 5 ) , who chaired cne cammi t ~ e et,vhich suihored
the above r e p o r t , described the 50 percsnt f i g u r e as a reasonable
assurnprion.

He r i s t i f i e d tha-. the ~ r z 2 t - s t 7otonzial f a r inproving

e f f i c i e n c y was through lrnproving che percmtage of k i d s or lancs
raised f r o m a flock.

He ,das of the ooinlon thac Increased procuctian

and lower grices Far lamb and wool aould increase cansumprion o f
these ic2ms.
167. Dr. Menzies nowd t h a t among the lirnitzcions o n tne e f f i c i e n c y and
productivity of raising sheep and goats were inf.ccious

diseases,

p a r a s i t e s , nutritional l i s e a s 2 2 , poisonous p l a n t s , a v a ; l d b i ? i t y of
labor, marketing problems, small s i z e of the industry and predation.

He asserted t h a t predation 1 owers the e f f i c i e n c y of producti on costing
both the producers suffering losses and i n d i r e c t l y che consumer.

He

indicated t h a t an often overlooked e f f e c t i s the i n e f f i c i e n t use of
land resources t h a t r e s u l t when high predation losses prevent the use
of land resources by sheep and goats.

- Yr. K e n s L r , ~ ( l i n < i n g 153) c i 2 d saca indicaziqg ;hz;
,2.

1

3.6 ~ i i ? ; o nneac gf carxlo,

goats in Texas.

.._
1 2 . 3 miiiion
?

s;zc:<

in 13L3

sneeg a n d 3 . 3

n:;;ion

3y 1972, the f i p r 2 s 'wer-2 1 3 . 5 mi1 1 ion c a c z l z , 3 . 3

mi 11ion sheep and 1 .3' m i 11 ion goats a ~ dthatbby 1980, the f i gut-es were
13.2 m i l l i o n , 2.4 million and 1 . 4 m i l l i o n , c a t t l e , sheep and goats
respectively.

He asserred rhat the s i g n i f i c a n t p o i n ~about che

number of animals was the change i n speciss m i x , and

t!-12 d r a s t i c

decline and even ccrnpletz slimination of shee? and soats i n some
areas.

;de deni2d chat the present pradcminazc~a f c a ~ ~ nzrcers
l e

was because cacti 2 were more pro7itable.

Se poi ncsd o u t char. i : Idas

not oractika? i n ~ u c hof Tsxas co s u b s ~ i t ! i t oca:tl?
goars on an q u a i animal uni t b a s i s ,

181
-

f o r sheep a n d

t h a t n o t only was the range

more suicable f o r grazing by c a t t l e , shee? and s c a t s ra:her

than a

single 5pecies, b u t thac such d i v e r s i f i e d operaticns resul tsd i n
;or?

re1 i z b l e cask flow and werz i n the bes-r; i n t e r e s t s of the n,pera-,brs.

He therefore concluded t h a t the switch

10 c a t x l e

\was due t o one o r

more external f a c t o r s over which operators had l i t t l e o r no c o n t r o l .
He assert2d t h a t one of these f a c t o r s was gredation.

He acknowledged,

however, t h a t low pricss played a c a r t in some ye2rs and t h z t sheep
and goats were more labor intensive f o r shearing, drenching, e t c .

i n addition t o being more susceptible t o predation.

Among Mr. Kznsing's

ducies as an extension economist with Texas ABM University i s the
preparation of cost and return budgets f o r livestock e n t e r p r i s e s .
-.
181 - ~ r a dtii o n a l l y an animal u n i t o f one cow and c a l f equals f i v e
ewes E d lambs.

He

sheep shoilced a. ne? r r - x r n of 5 1 3 . 3 2 ,
t2i:

t4t-11

c;:

r2

~ s s s r : t~~ ~c 3 b : i5 n ? d

?roduc2rz cou7d n o t I c ~ gc o l z r a t ? zn a a c i c l c n a ; loss of tsn

percent.

Se indicatzd thac t h i s was t o count2r a s s e r t i o n s i n some

q u a r t e r s thar sheep producers wers rnak?ng coney and could e a s i l y
absorb an additional t 2 n percent l o s s t o predators.

19/
-

1 6 9 . Or, 2awns ( F i n d i n g 165) t e s i i f%ed tnac q r e d a 5 ~ ncauses s2ricus

scsncmic losses co nany ;rcduczr;,
1 ivestcck cerazi cns .

forcing h e abiinacnrnenc 07 r a y

Fe a s s 2 r t z d ti?a"ihese

:osses

reach 1 ? v $ i s 

v3

C\I

tl,
C
.r-

73
C

.r-

v-

v
v--

w

'r-

't-

L
3

x

L
r_

,

.

I-

r m a ,
t n t l

lr:

3 mI C'
0LZ
0 (I!-

w

,--- V ' C
4 0 rd

1

shoulc oe o f ? s ? r oy expenses f o r shezring, i e ~ e r i n a r yf ? e s

2nd

e t c . i h a ~waul@ o i n e r a i j e have been inc2rred 5ux for predaiion
of p a r t i c u l a r animals.

iapz ., y. e s ,
1

0

~

~

Fixed c a s t s f o r property taxes, pasture

1e a s e s , o r ranije permits d o not ordi nari l y vary w i t h death l o s s e s .

#orilover, absenx extremely heavy losses labor c o s t s i n managing
flocks would remain a ~ p r s x i m a r s l y:he same.

Czsts for s h e a r i n g ,

vetgrinary f e e s and supplies, e r c . w o u h , of course,

je

lower f o r

3

l e s s e r number af animals, b u t a r e not o r d i n a r i l y s i y n i f i c a n t .
173. i n addition to d i r e c t 1osse.s caused by k i 11 ing l i v e s t o c k , predation

a l s o resu:ts i n i n d i r e c t c o s t s o r l o s s s s .
2s

Dr. 3owns

iist2d thesz

( 1 ) r ~ d u c z danimal 7roduction caus2d by malestaticn; ( 2 ) :zduced

production and doazh losses causzd by ~ f f o r t sfs ~ v a d e;oss2s (exariioils
o a r a s i t e i n f e s ~ a t i c nand smothered aninals r e s u l t i n g from clos?
conii nernent) ; ( 3 ) c o s i o f supplmental feed f o r confined anjinal s ; ( 4 )
labor f o r gathering sheep s c a t t e r e d by predacar a t t a c k s and i r e a t i n g
injured animals; ( 5 ) d i r e c t c o s t s of control ?:for-s;

( 6 ) reduced

a t t e n t i o n t o other phases of f a n and ranch operations and ( 7 )
i n a b i l i t y or unwillingness o f ranchers to produce s h e ? and
areas we1 1 s u i t e d hereto.

oats

in

He acknowledged t h a t t o the extent

r e s t r i c t i o n s were placed on the use of 1033, in the event i t was
r e r e g i s t e r e d , a t l e a s t some o f these i n d i r e c t costs would necessarily

be incurred.
174. Dr. Thomas M. Power, Professor of Economics, Chainan of the Economics

Department a t the U n i i i e r s i t y o f Montana, and a witness f o r Defenders,
disputed the vieur ta:ial: greater o r more e f f e c t i v e predator control

2

~

J

'+/ould nec5s s a r i :;J 5er;er'i -, sheep ?rcrduceri as a ,vP,o?2 .

ou:

t h a t avai 1 a b i 2 daca ( G e e ,

a -i .

2'

\

here

i

LC

+?, :oj

fl:sd

zhe ?.ff?cr '52:

43

percenr of comercia1 ~ r o d u c ~ ri sn che weszern iJnif2d S t a ~ s shaa
no lamb

10552s

t o predators, t h a t 67 percznt incurred no s h e q

l o s s e s t o predators and t h a t o n l y 23 percent had predator losses
of lambs g r e a t e r than 10 percent.

ile explained t h a t zn increasz i n

sup01 y might % e l1 decrzase pri css s u f f i ci e n t l y thaz gross revmce

t o the indus~ryl ~ o u l dbe reduced and t h a t i n such an ovent,
producers sufyeri ng 1 "Ltl2 or no predatior; would rec2iva icwer ? r i c3s
and no correspondi ng benef ii s .

?reducers w i t h h i g h przdacion r a c t s

would g a i n a t ;he expens2 of produc2rs with low predation.

'Ahether

an i n c r e a s 2 i n _supply ~ o u l d , i n f a c t , r e s ~ti in a dscrzasz i n ; r i c ~ s
depends on t h e i m s i z f v i t y o f pricz t o the quanti cy sola which i s
termed " ~ rc ei i l exi b i 1 i t y or price el a s t i c i t y o f denand. " "P7.i ?
\r - -

f l e x i b i l i t y " i s che p e r c e n t ~ g echange in ? r i c 2 wnich will resul i.
from a one p e r c ~ n tchange in t h e quanti ty ofS2rsd f o r s a l s , w h i : e
" e l a s t i c i t y of demand" i s the percznmse change

quantity purchased

jn

t h a t r e s u l t s from a one percent change i n p r i c e .

Dr. Power s t a t e d

t h a t crudely one could be regarded as the reciprocal

37

the ocher

He t e s t i f i e d t h a t the p r i c e f l e x i bi 1it y c o e f f i c i e n t u t i l ized by
USDI of - . I 7 t r a n s l a t e d t o a minimum demand ~ l a s t i c i t yo f 5 . 5 8 ,

meaning t h a t a one percent decrease i n price l~ouldr e s u l t in ;n
He asserted

increase o f almost 6 percent i n quantity purchased.
t h i s had never been observed and was u n r e a l i s t i d .
-

-

-

-

7 - -

I v 2 .

..

;r. ? w e r ssl cilazed a ; a n :.\/el

i r i c e '?astici:y

-

- ..I; 21
. ., -.7 % ;) f
pri zs ;

o f denand f c r ldnb o f - 3 . 1 wn;--

,- j . 5 i

zrLj

7;lesns zha:

2

I L ~ I

,?Re

percent increase i n iuppl) ~ c u l d~ e s u l ; in a grercer i,+an d ace
perc-nt decrzase i n the aric..
demand by less t h d n one percent.

This decrease i n pricz :vou?d incrnase

?e ci tod other studies

showing price f l e x i bi 1 i t y within the range a f his c a l c u i a t i o n s ,

noted t h a t hi8 c a l c u l a t j o n i (based on 7970 s;
m a t the denana f o r iamb was cansran:,

l38C

d 2 ~ 3 )3ssdmed

~ k e r ~ athe
s o a t a suggested

demand :vas dec l ni ng and znersfor? asserzed h a :

his i s ~ i m a t e d

p r i c ~e l a s t i c i t y o f -0.61 was an overt.siima~a. i e concluded i n a f
the demand fur lamb was loss e l a s t i c than his ? s ~ i m a t eGr i n e l a s s i c
and thac increasel eWeccive predator cgntrol

N O U ! ~degress

more t h a n enough to o f f s e t increased revenue frsn

pric~s

j a i e a f an:aa:s

:A?

i'

176. Cr. John Schaub ( i i n d i n g W ) t e s t i f i e d t h a t xhe ;r:ce
f o r lanb &as e l a s t i c , i

.2.,

relarionshi?

t h a t an increase i n quanrity mrkeced

would result i n a l e s s than equivalsnt o r corresponding dectease
i n price.

He asserted t h a t t h i s conclusion was supocrted by a

preponderance of the l i t e r a t u r e and tha; b o t h jraducsrs and consumers
would benefit by a reduction in predation losses and an increased
supply of lamb.

In cdlculating increases in revenue r e s u l t i n g from

assumed decreases in predation losses a t t r i b u t a b l e t o

luse

of 1080

and increases in t h e number of lambs markekd, Dr- Schaub used a price
f l e x i b i l i t y value or c o e f f i c i e n t of - . 4 2 (farm l e v e l , yearly b a s i s )

taken f r o m a USOA p u b l i c a t i o n (Usman & Gee) n o t in evidence.

He

adhered to t h e

.

!,j31~
that

-

,qas

L412 a

L ;

rpropridi

F T ~ Ci:?xi
~

b i ! i ty

vaiue even ;:7cugii sucn $ialues f o r 2ther ccmon zea; i t z r n s ssch

2s

beef, ;art and chicken ?rere a', 1 greater than one, i n a i c l t i n g +~ ~ n a t

the demand was i n e l a s t i c .

%e defended chis r e s u l t upon the ground

t h a t lamb as now so expensive, i t was more of a luxury o r special iy
item.

LIl
-

He acknowledged t h a t pricz f l e x i b i l i t i c s change over time

and tnac the d a t a i n tne ci red USDA pub1 i c a t i cn was c n l i czrrenc
through 1975.

de ?ointed o u t , hcwever, t h t 20. ?ower had not

reported ~ h confidencz
e
i nxarva! dsS0ci axed wi :!-I ni s c c e i i i ci enr
of e l a s t i c i t y and thar Or. Power's single estjmate did n o t indicare
t h a t sufficienx t e s t s had been conduc~ed t h a t j c could be consj2ered
a r e l i a b l e est'mato.
177. Using an estirnatsd average current l c s i of iambs t z coyotes c;

- , - -

3.2

percenc, Sr. Schaub c a i c u l a ~ e dt h a t a one 7ercen: zedcc-ion i n losses

t o coyotes t a 5 . 3 percenT would increase lamb production by 53,300
head and gross revenue t o producers by $ 1 . 3 mi 1 1 ion.

This calculation

i s based o n the - . 4 2 price f l e x i b i l i t y value r e i s r r e d t o i n t h e

preceding finding.
as rea:onable

He defended the 6 . 3 percent es:i,~ated loss f i g o r e

based on Gee, e t a l . , wno derived an average loss to

coyotes of 6 . 4 percent, even though he acknowledged t h a t precise data

on lamb losses t o coyotes were n o t a v a i l a b l e .

He a l s o ackncwiedged

t h a t data on the extent t o w h i c h use of I080 would decrease coyote
predation were not a v a i l a b l e , b u t defended h i s assumptions as reasonable.

Ilj This i s contrary t o a study c i t e d i n the testimony of Dr. Power
which i s t o the e f f e c t t h a t the p r i c e of specialty items could be expected
t o be more responsive t o changes i n supply.

t h a t reduciflg coyoc2 g r ? d ? z ~ o n ~ Q S S ? S xo 4 . 3 serc2nc

N C L ~ ~incr?as?
S

lamb production by 107,lCO head and gross revenue

i k e ? prgducers

by $2. I mi i 7 i o n .

f3

Reducing 1 mb 1 asses tc~3 . 5 percent jxou1 a increase

production by 760,650 head and gross,incorne "L U.S. sheep clr3clucers
by 54.1 mi 11 ion.

A r'urTher reduction -,o 1 . 5 ? e r c s n t

iamb ?roduczfon by 267,750 heau and Sross iqcome zo

$6.5 m i l l i o n .

increiss

IHGU?~

?reducers 5y

Dr. Schaub indicared Enat accsmpanylng ,d~cre2s2d

losses t o c o y o t e s would be m o a e s t d e c r ~ a s s si n prices w n i c h wobld
benefit consumers.

A rzduct'on in c o y o t s predation from 6 . 5 perZen,

t o 1 . 3 Fercenr would be

3

r e d u c t i o n of a p p r c x i n a ~ e l y77 perr2nt,

which i s u n l i keiy even under tile must octimi s t i c asscmpticns

2s

La

che e f f ~ c t i v e n e s sof 1080. Or. Jchaub a s s e r ~ S ,however, xna? z a y o t z s

>I
prey n o t only on lambs, b u t Jn c a i v e s , g o d t s , swine
thae these estimates should be regarded as

gain from rlduced predation.

2nd

7cui t r y

2nd

a lower bound of p o t e n r i a l

S u c h reductions in c o y o t ~pr2darion

xould h a r d l y be c o s t l e s s and t h e s z cost:

should be deductzd i n

considering o v e r a l l benefits.

178. Dr. Schaub used sheep p r o d u c t i o n budgets prepared by the Cooperative
Extension Service, Colorado S t a t e University, i n 2 s t i n z t i n g i n p a c t s
o f the use o f 1080 on individual producers.

He i n d i c a t e d hat i c

was unlikely t h a t f a n flock operators would b e n e f i t t o any appreciable

range lambi ncj wou: d 70s; 1 ikely

b2

-. .
:he p r i nci ?a1 bener;ci ar; 2s
*

Utilizing Csoperative Extension Service oudgets, Dr. 5chaub calculztsd
estimated economic impacA6 of reductions in iamb losses

TO

coyozes

f o r western Colorado produc2rs o f from 0 . 7 percent t o 3 . 0 percgnt f o r
a producer having 500 sheep 2nd shed iamoing, =rcm 3 . 3 7erceni t s 2 . 4
jercsnt f o r 2,WO sweep ,di:h

shed lacbing 2nd i r c m 1 . 5 zerceni r s 1 2

percenc f o r a producer naving 2,400 sheep and ranas larnbino.

fccnonic

irnoac~swerc a l s o e s c i n a t ~ dfor an Eastern Colorado p r o b u c ~ r naving

2,GOO sheep, shed lambing and an ssxizatzd reduction i n coyots loss2s
o f from 0 . 5 percent t o 2 . 7 percznx.

In doing

59,

he made c s r t a i n

assumptions, i. 2 . , t h a c adai tional iambs wouid be nsrkec2d f o r
s l a u g n ~ e r ,t h a t feed, t r a v e l , and hir2d ldbor costs w u l d incr?as?
a t ths average 2we r a t e contained in the o r i ~ i n a ibuagec and rhac

range and f a m i l y labor c o s t s wculd be constant.

Gross inccme f o r the

producer with 2,400 head u t i l i z i n g range lambing wculd increase from
$1 ,845 t o $1 5,454 depending on t h e magni cude o f the r2duction in 1 osjes
to coyotes.

?roductisn COSTS could increase from $707 to $ 5 , 9 2 5

r e s u l t i n g i n returns from p r e d a t o r control and t o management increasing
from 91,139 t o $ 9 , 5 2 9 ,

Comparable increased returns f o r the producgr

with 2,400 head of sheep u t i l i z i n g shed lambing were $1,217 to $5,300,
while production costs could increase from 5539 t o $2,310, r e s u l t i n g
i n returns from predator control and t o management increasing from

i 29
~ c o ,i c
C

I

r ?-.

52,gGC.

F7
.

,:per,:+$?,

354

::::c?

;?:ji

C~U?-J

, ran

increase f r o m 531 7 ;o 51,250, prcducricn c o s r r caul d ir:r??ie

i^

5107 t o 5429 and r-eturns frm predatar c s n ~ r a iand :c aanagsmenz

could i ncreasa from $210 co 5331 .

The a s t s r n Col orzdo producsr :uas

assumed t o operace on privaiz land and to have lower predaiion r a t e s .

For t h i s operaior, gross income could increase from $822 to i4,2&5,
production c a s t s could increase from $533 t s 5 2 , 7 5 6

and

rsturns frse

predacor c o n t r o l and to nanaFemenr c o x l d j a c r e a s e irom 5288

~3

41,189. None of these estimates include increases i n c9s;s for
predator c o n t r o l .

Dr. Schaub :2s:ified

t h a r tnese eszlmates were

f o r losses consicered t o be average or r e ? r e s e n ~ a t i v e , and t h a t l i k ?
a l l averages, i h ~ ycould severely underestirnatz rhe financial
i m p a c t o n individual praducers suffering high 7redar:cn and thus oe

rnisieaaing.
1 7 9 . #r . B i 11 D .. Sneed, President of 'i r s t Col e ~ a n' l a ~ onal
i
3anu o f Sal ewan ,

Texas, a rancher a c t i v e l y engaged in r a i s i n g sheep, soars and c a i t l e
and a witness f o r Yyoming, e t a 1 . , t z s t i f i e d t h a t his bank had denied
requests f o r loans on sheep a n d goats (apparently using them as
col l a t e r a l ) because of coyotes.

He explained t h a t there kere c e r t a i n

areas of Coleman County, which were heavily infested w i t h coyotes and
t h a t i f land

jn

one of -those areas changed hands, his bank would decl ine

a loan on sheep and g o a t s in one o f those a r e a s .

He asserted t h a t a

number of ranchers i n the County had gone o u t of business because o f
losses t o coyotes.

He acknowledged t h a t there were ocher reasons f o r

d a t a i n d i c a t i n g t h a t i n 1,276, tiler?

;wer9

77 ,,ZOO 2eies i n Colerzan

down

County and chat by

t h a t t h e r e werz 204 sheep prcducers i n t h e County i n 1977, bur only
165 i n 1981.

He contended t h a t t h e sheo? i n d u s t r y was v i

xo t h e

County a n d , t h a t many a r e a s were more s u i t e d t o sheep ?robuction o r a
conbinati on o f shee? and c a t t l a production r a t h e r than just c 3 t t l e .

i
k s a i d t h a t on a ; a r t i c u l a r 575-acre i e a s e , he Idas unable t o rtin
sheep due t o ? r e d a t i o n by c o y o ~ s2nd t h a t he (was only one of ,~zn;/
f a c 2 i by t h a t proole!.

:e f u r t h e r c m t e n c e d t h a r only ; q i t h t h e

r e i n s t a ~ e m e n to f Compound 1080 could coyotes be c o n t r ~ ~ l i eand
d ncney
returned to the pockets of the producers.

$.nother s i d e of che

econorni c s of prsdatgr control was p r e s e n ~ i x lby Yr . Robert C ~ r ~ e n t z r ,

a Drews2y, Oregcn c z t t l e rancher and a witness for C ~ T a n d e r s .
Mr. Carpenter has not s u f f e r e d any l i v e s t o c k l o s s e s t o predators
and was highly indi gnan t a t FWS ADC c o n x ~ o l ooeraxi ons , because he
considered these o p e r a t i o n s deprived his sons and o t h e r s o f n29aed
income from the s a l e o f coyote p e l t s .
180. Mr. Charles Howard ( f i n d i n g 7 1 ) estimacsd t h a t h i s t o t a l income from

goats i n 1979 was approximately $28,0CO, while h i s predation l o s s e s
t o goats t o t a l e d $35,619.

This included d i r e c t c o s t s of $14,637

comprised o f $10,657, f o r l o s s of goats and mohair, $1,470 f o r t r a v e l t o
' p a s t u r e s t o pen goats and $ 2 , 5 2 0 f o r ranch expenditures i n t h e control
of predators.

I n d i r e c t c o s t s included $5,400 l o s s of a d u l t goats co

p a r a s i t e s and complications, $3,600 l o s s on goats sold because of

.

.
c r o d u c t i a n a s s ~ r ~ e dSue
l j ~2 p e n n i ? ~ , $;3,413 I n 1 ~ ~ 3 ~f
2 st i c s a c d

xohai r 2nd S823 i n veserinary f2es and 'rugs.

-.
I

n f s e f i g u r 2 s jc: r z c z

and indirec-c c o s c s ) t o c s l e a 541 ,979 from w h i c h was s u b t r a c t s d S 6 , j E O
f o r expected normal iasszs o f a d u l t g o a t s , k i d s and n o n a i r .

issue 5
181. Mr. Cannolly ( f i n d i n g 133) t e s t i i i s d :haz

i n t a c t , ~ n b r 3 k a ncgllars ci:

n o t pose an ? n v ? r c n n e n i a l hazard and wer? not a s i j n i f i c a n c hazarc o:
8

.

c o l l a r a d 1 ivestock.

In t h e FWS f i e l d c e s t s lwich ;he t o x i c ccilar a
22,'
o f which 25 : ~ e r rzccverzd
l
aft2r
t o t a l of 313 c o l l a r s were used,

having been punc:ur.d

by c o y o t ? s , f o u r z o r e c o l l a r s wera p r o b a b l ;

punctured and n o t recover2d and 1 4 were l o s t .

I n a d d i ~ i o n ,11

coi 1 a r s ;rerp, a c c i d e n ~ a 1y1 p u n c t u r e d .

:,he repor? of the

,A1 :nough

aval u a t i o n of t h e s e r,zsts by /4r. Connol l y a c k n o : v ? e d ~ b rha', the
hazard posed by 10s;: c o l l a r s Idas d i f f i c u l " L o oOb.ject.i5~e1j/a s s a s , ir.
was p o i n t a d o u t t h a t the col l a r s were n o s t 1 i k e l y t o be f o u n d by t n e
l i v e s t o c k owner, who would be aware of t h e p o t e n t i a l hazard r a t h e r
than a t h i r d person u n f a m i l i a r t h e r e w i t h .

I t was f u r t h e r p o i n t z d o u t

t h a t t h e principal danger t o the f i n d e r would be from opening t h e
c o l l a r and t a k i n g the lC8O o r a l l y , w h i c h he would do o n l y i f he f a i l e d

221 The a c t u a l number o f c o l l a r s used was 151 small and 94 l a r ~ e
col 1,;a
the. 31 3 f i g u r e b e i n g t h e resul t o f c o u n t i n g s e p a r a ~ eyl col 1 a r r
used on more than one t e s t . Small c o l l a r s c o n t a i n e d approximately 300
mg t o x i c s o l u t i a n w h i l e large c o l l a r s c a n t a i n t w i c e t h a t amount.

. .

t h a t a chi l a 7;;;Snr :var,i?r

a ? a s z u r e , f i n o a ?urc:ur?d

jqr-3

3r

iz:;ti 29

c o l l a r , g e t :he t o x i c soiuxion on h i s hands and then i n t 3 h i s nzuth.
\ h i 1e his possibi 1 i t y cannot be r u l e d c u t , i t i s highly ~ n ilk e l y .

Mr. Connolly recosnized t h a t l o s t c o l l a r s would e v e n t a a l l y d e t e r i o r a t e ,
a1 lowing the :oxicant
by b a c t s r i a l a c t i s n

co e n t e r t h e soi 1 where i r would be d e t o x j f i e d

. The time required f o r d e t o x i f i c a t i o n ,vou! d vary

w i t h he amount o f toxi c a n t , s o i 1 type, t e m p e r a t ~ r z ,z s c . , j u t s t u d i e s

summarized i n Aczert, wer? to che e f f e c t degradation :f Conpo~ind iudO
1 h P

i n s o i l required from 0 to 11 rreeks.

I n sen t e s t s w i t h e i g h ~c3l l a r e d

lambs using dye r a t h e r than Compound 1080 in The c a ? : a r s , scread o f

the dye a f x r the c o ? l a r s Nere p u n c ~ u r e dby ccyot2s varied b e ~ ~ e e n
12 s q . i t . t o 300 jq. fr,. d ' t h the aversge b e i n g i 3 8
o f the dye depended an whether :he
I

time xhe c g l l a r was puncturad,

jc.

f:.

Sc;.=,.-.
- L

lamb 'r/as dcwn or inoving a:

I x was estimatsd tha: an

:he

"A

i1

2v2n

d i s t r i b u t i o n of Compound 1080 over rne average dyed ar2a of 138 ss.
i t . wouid r e s u i t i n conczntration of 2 . 2 ag per s q . f t .

.;..n e proszecc

t h a t such a low c o n c 2 n ~ r a t i o nwould causz s e r i o u s envi ronnencai damage
was considered remote and no such damage was obszrved i n i i e i d t s s t i .

In i n i t i a l t z s t s with the c o l l a r s i n Idaho, some of the c o l l a r s lsaked
and s i x c o l l a r e d lambs died.

Although Mr. Connoily i n i t i a l l y thought

the lambs had absorbed t h e t o x i c a n t through the s k i n , he subs2quentiy
concluded t h a t the 1080 s o l u t i o n dripped i n t o t h e i r mouths

the mode of i n g e s t i o n was o r a l .
d

and t h a t

cr,crns. Jo 2v:zerrce c f silcn ?ur;czl;ras :vas coszr1/2c, sn sn'nal s ~ j ; h
puncUr2d

collars

3r

cn che ground 2ven r9oUGh zhe :oxiz j o i u s i ~ n

c o n ~ a i n s dRhodamine 3 dye

2:

a safocy i n d i c a u r .

Anorher r z u t z o f

potential exposure i s the carcasses of csyotes poisaned by ?uncsuring

toxic collars.

Gniy turkey vulxures a p p e a r t o 3ave scsvenged m y of

.he coyotes found during fWS cesxs :vi ~h the :oi 1 ar. T8~rk2y' i u l tutes ,
bl ack \tuitures , nagpi es , rzvens , red- t a i 1ed hdwks , car3caras,

3

skunk and a coyota Nere known to have scavenges c ~ ~ l a 1ives:ock
r ~ d

killed by coyotes.

Scavengers feeding on c o l l a r e d l i ~ e s i a c kkilled by

cayoles cancencrased on viscera and muscle tfssue racner Than ~ h e
eel 1 a r s .

1Yr. Connol 1y t2st-if i sd chat he 'lad oever o b r e r . i e ~scaveng! ng

on cne neck arc3s 07 col7ar2d ii\iest3c!<. ?ho-cos i n the record o f
collared livestock heavily scavenged show neck ar2as l a r g e l y i n t a c t .
A 1 t h c u g h i t i s ?ossible rhat there were

non-izrze~k i l l ;

from usa O f the c o l l a r s , none ;Yas observed.

Xr. Connolly s i 3 ~ e c lc h a t

fesa::frc

i f there had been any s u b s t a n t ~ a lnumber of non-targer kills, they
would have Seen located by the intensive searcnks o n che Charles %ward

-

Ranch, Meridian, rexss. 3ased on these f i e l d observations, i t was
concluded t h a t ther9 was no reason t o expect s i g n i f i c a n t poi saning of
non-target w i l d l i f e r ~ s u l t i n gf r o m the use of 1680

jn

toxic c o l l a r s .

Non-target deaths of animals suspected sf being poisoned by lQ80 have
not been observed t o date i n t e s t s with the c o l l a r s by Texas A&M
University.
183. A s ~ n a ~ c a t e( di i n o i n g 8 8 ) , SLUs containing id80 have not been e x t e n s ~ v e i y

tested in t h e United S t a t e s .

They have been and a r e b e i n g used in S r i t i s h

C;iumbja

2nd

,;us:r-j:

i a r ~ e; c ? n ~ ii i e s

la.

2 i

cay0t.s

%ere z j e d jy A i C ~ r z a r . r , e i f j r the csnirg;
SL3s used ' n Sri i

(finding 94). X!:houcjr!

jimil ? r s:rjchni ne cai r j ,

< ~ i ioidrnbia
i

;rior

:2

'

-77
,Y,-

7

Ere a v e r e d

~3

minimize the possi bii i t y of t a r g e t s consuming nore than one b a i t acd

t o minimize exposure

io

nun-targei s p e c i e s , t h 2 aoplications f o r

the use of 1C80 in SLDs by Montana, South Dakota a n d Wyoming a ~ o a r e n z l y
do not envisage t h a ~bai:i

ltqill be c3vered.

4 . ?anaal1 ( f i n d ?n g 125)

test! f i e d t n a t he was never inforxe'l hat s t r y c h n i n e d r o o hi::s
b,e covered.

j

houi i

lje f u r t h z r t a s t i fi 2d t h z t i t 'would have seen very

d i f f i c u l t t o do because i n inany areas i here b a j t s were placed :her?
weren't enougn cow chips and rocks were frozen o:

the ground.

asserted t h a t no one covered itrychni ne b a i 5s ; nc?A ynstandi n g

Ye
3

memorandum, datod Decmber 15, 1970, t h a t i: was 3urzau 701 ~ c y:he
Sai zr be covered.

Se Idas o f the opinion :hat

keep track o f such bait:

'her2 was no way t o

or t h a t such a progrzm ;;uld

be prcperly

184. The exposure a f 3L3s :a non-target species &?ends, of ccurse, on the

rate o i application.

?lantana's application Tor r e ~ i s i r a r i o no f

Comoound 1080 envisages 3 . 5 ng of 1 G80 i n a IS-sram b a i t ,xi t h a
maximum piacemenc of 25 per square mile.

South Dakota's application

i s a l s o f o r 3 . 6 mg of 1080 in each b a ? t with no iilore tnan t'tro hairs

t o be placed a t any one draw s t a t i o n and no more than f i v e such
s t a t i o n s t o be located in one square m i l e .

Assuming maxiinurn usage,

/

I

,

r,no,rz

z-Q?~ 53

352

'32; ~5

7 y

zz3;ii?shi3 csnr2.l n i v gm-?rc;:j--a'_-l~

1 , 3 g c f 1CSO c r sli~nslyless :mn

in a ? arge s c a t i c n .

the 1.5 crms 39r 130

'Aycni ng ' s a p p l i c a c i ;n

~ O U ~ SU SS C ~ C

apparenciy i q t s n ~ sc h a t t h ?

amount of 1280 in eacn b a i t a s well as the maximum a p p l i c a r i c n raz2
be l e f t t o the judgmen?: o f t h e applicators.

9 r . :iiliiam suck, Professor

of Vezerinary Toxicology and Director of the Animal Poison Cantroi

Center, Gniversity of I l l i n o i s , lirbana and Dr. '/a1 I?. B 2 ? s l 9 y , 2 0 c t ~ r
of Vetari nary Xedicine and Research ,Asscci a t e i n T o x i c o i c ~ ya:

the

University o f I1 1 inois , w i tness3s f o r Deflndzrs , k s t i f i e d :?a:

Secause

SLDs wer2 designed f o r more widespread use, chey were mcr2 iikoly co

be more a v a i l a b l s t o domestic dogs and c a t s and use o f SLDs c o u l d
r e s u l t in the poiscning of l a r g e numbers of t h e s z and other snail
non-target carnivores.

Dr. Buck acknowledged, however, r h a t a r e q u i r z -

menc t n a t b a i t s be placed no nearzr than a ~i 3 e o r mo from

2

home or

occupied dwei 1 ins would 1 esszn the nazara co n e s e animals.
185. The contzntion t h a t Compcund 1 C 8 C i s a s e l ~ c t i v spoisan i s bas& i n

? r i n c i ? a l par:

on d i f f e r i n g levei s of

s2nsi t i v i

ty

10

rho, j o i s o n .

Carniiores .rp_ i n general Tore s e n s i t i v e t o 1030 than a;her

s jet! es,

while canines are considerzd :o be 2 s p e c i a I i y susceptible t h e r a f 3 .
23/
For example, the LD50
of 1080 for a coyotg has keen determined t c

be 0.10 mg/kg, whils t h a t for a man i s estimated a t 0 . 7 t o 2 . 1 mg/kg

23/ An LD50 value i s a s t a t i s t i c a l estimate of t h e dosage t h a t would
be l
e
t
x
a
l to 50 percent of animals t 2 s t e d .

136

and ;ha.

( 7 .; 5

f o r a scls2n e a g l e i s 1 , 2 5 tg 5.C0 - x / t , .

-1

1

- P 4 ,
tu I

Su2 -i;s-

J.

1 . 5 g o f 1080 per 160 pounds of b a i t , thac a i50-pound man wauid

obtain an LD5g by the consumption of from 4 7 . 6 oz

-LO

142.3 oz and

t h a t a gol'den eagle (average weight 7 pounds) wouid recsive an LDS0
by consuming from 4 . 0 oz co i 5 . 9 oz of such b a i t macerial.

f o r a coy0t2 has been estimated

-

the LDcO values f c r nan and the

3t

0.16 ~ ~ g / k g . i c i s zcparsnt tha;

23912

not precise and have a cgnsiderable

An LDlgO

as n e i l as s c t e r s ? e c i f s ar?

ranee.

-1 2 s z s so 2stablish

:hese

values have obviously n o t been csnducted o n humans 3nd Tne x s t s

3r1

many other species including c o y o t s a n d eac12s have not wen
conducted on a s u f f i c i e n t number o f 3ninals c h a ~a s t a c i s z j c z l
coniidence interval can oe z s t a b l i s h e d .

Inasmuch as the fcod

consurnprion o f an eagle i s approximatoi y h o p o u n d s a d a y ,

L

ii

c l e a r t h a t an eagle could obtain a p o t e n t i a l l y l e t h a l dose in feeding

on

3

bait station.

sgecies.

This i s , of course, a l s o t r u e of c t h e r ncn-carget

There i s evidence t h a t the $350 valu? can vary depending

o n whether the god?

gf

administration i s by a tallow b a i t or water.

Moreover, Drs. Buck and Seasley (finding 184) referred to a study
indicating t h a t a median l e t h a l dose of 1080 a c 22°C was 21 mg/kg,
while a t 8 O C , the equivalent dose was 4 . 5 mg/kg, indicating t h a t
temperature had a g r e a t e f f e c t on the t o x i c i t y of the poison.

LDjO

values a r e more l i k e l y t o have been establ ii n e d in l a b o r a t o r i ? ~a t

or near normal room temperatures.

;usper.sizn o f ;oe

ragi i;ra;i3n

- ; o.i ~ p c u , ~ ;ICaC)

2;

rr-g~r:::;

ibr;e-

bai t s ~ a z - i a n s)was thaC :he n i n ihum number Fecessary co achieve

e f f e c t i v e cayote managenent r a s

f3

be g l a c ~ d . -~ n i iLvas jenerally
8

i n t e r y r e t e d a s requiring or p e n i z t i n g the pliicemerlt of not more
than one stazion per township.

%i:h the approval of the S i a t e

Supervisor, up to tuo s t a t i o n s per cownship could be ?laced wner.
c e r r a i n required a d a i ~ i o n a ipl3cementi i n orcer

i3

achieve needed

Guidelines issued by tne 3 u r z a u f u r t h e r stazed tnac :he

controi.

use of 1020 large 3ai ts was a technique r5served for ar5as

here

other c o n ~ r o lmethods had not been e i f e c t i ~ ein r ~ d u c l n gcayoie
populatjon to a desired level and where such use would have a
minimum e f i e c z o n oon-carget w i l d l i f e and domestic animal:.
s e l e c t s d s i z e d i d net meet m e s s r?quirerneni;,
used.

,. -

LT a

1580 ,das not :s be

Hr. Randa 1 1 ( i f ndi no i 25) , nowever, : e s c i z i 2 d iha: ln jr?ccl c e

the number of b a i t s t a i i o n s pldced each year d j d not vary s i g n i f i i a n r l y
and t h a i the s t a t i o n s were placed in nore o r l e s s rhe same l o c ~ x i o n s
each year.

The tesiimony t h a t b a j i i ~ e r splaced i n aoproxinateiy

t h e same locations each year was c o n f i n e d by Mr. Gene Chaoel, a
Montana c a t t l e rancher, a former ADC employee of the N S and a witness

The theory of not nore than one large-bait s t a t i o n

. f o r the AFBF.

per township was, of course, t h a t coyotes being more rnobilo and
having larger home ranges would be more a p t t o come i n contact with
and feed on the s t a t i o n while smaller, l e s s mobile animals with
6

2

2

r

i

e

A

I

IL,

~ l r .i d o a a I

asserted t h a t thrre..~lrasno place where only coyotes l i v e d .

He

t h a t gany AOC f i 2 1 d ~ e r s a n n e ic c ~ u l d n ' ci s e n ~ i f ytracks 07 various
species, and they had no data o n locations cf endangerzd species
and ocher non-target animals.

The r s s u l c was t h a t ~ a i c swer?

placed away from ~ a t e rand on elevated loc3tions ,&her? the sncw

--

would most l i k a l y be blown or; and d i ~ h o u rregard t c ,ion-t;r;ers.
187. Bureau guidelines a l s o c a l l e d f o r b a i ? sxations t o be ;iac?d as

13x3

as practicabiz i n t h e fall in kegping w i c h ;af?ty "i one5t-eaciflg
mammal s and b i rds , ?f7?cziveness i n c s n ~ r o1i i ng damage, 3nd c o n d i ti ons
o f weather and t r a v e l .

3 a i t s were t o be removed as 2:rly

i n zne

;?ring as weather and travel conditions p e m i cted, a7ssr a l lcwing a
s u i t a b l e , b u ninimum
~
~ i m ef o r .xpis~;.:?,

I n t h e ~ r y his $ 1 irnicatxi

or m i ~ i n i z e dexposara t o bears and oCQer i i b e r n a i i n g aniflais.
1

Hr, Randal 1 r e l a t e d t h a t in many instanc;:~ becaus? o f ~ h esgowpack

~t

higher e l ~ v a t i o n sand the press o f o t h e r d u t i e s , bai t s t a t i o n s could

n o t be rmoved until early s u m e r o r i a c e r , which was l o n g a i z r
hibernat'ng animals would be o u t .
1%. ,As indicated previously (finding 1 ;)2j, l a r g e - b a i t s -were co 02 treated

a t the r a t e 1 . 6 grams o f 1080 f o r each 100 pounds o f meat.

Mr. Randal1

described t h e difficulties i n cbtaining proper d i s t r i b u t i o n o f 1080
i n large meat-baits.

He t e s t i f i e d t h a t even a f t e r 1080 was d i s t r i b u t e d

-

>

i n v i a l s of 0.3 g and 1 . 6 g , i r: :vas i v ~ o s s i b l et s a'stribu:2
;f

"=
, - C~SCY:';H!

a srs,.;: ? % / e n j jz k r a ~ ~e2c:?
n
?sun:', of m ' t .

~ s s d ,; IC!ort3n meat

pliii;D

7

,- ,l

12; ,~;Lv

:he

- r

-3s

?r,,irnsn:

for rhe ?tir?os2 ~f 5 ~ 3 a r~ l i rncj
! hans , a s

a medieval method of a p p l i c a t i o n , a n d a s s e r t e d thac ckbe o?ungars
frpquently leaked and t h a t the pumps did n o t work properly i f u s d i n
below freezing o r zero weather.

2e s t a t e d t h a t 1080 had an a f f i n i t y

for protsin and would not penecr3te membranes.

I F the need?? h i t a

membrsne, i t a ~ t o r n a ~ i c a l lcreated
y
a h o ~s p o t , i . ? . , an ar2a c f mre
conc?ntra-c2d so1ut;on.

He i n d i c a t ~ dt h a t even a S t s r :4GC f i e i d

persor?nel were furnishzd s c a l e s , i t was s t i l l nec2siary

t3

estinat?

the amcunt of bone, hide, e t c . i n each ? c r t i c n i n det~rniniag :he
?roper q u a n z i t y o f 1080 solu-cion t o apply.
containers

hoil'd

He s t a t s d

hat g r a d u a ~ e c

have Deen of assistanc2 i n ~ i x i n sche proper q u a n t i f y ,

bux xhat such con,;-j.iners Were no;

avai i a b i ? .

:!

133. ' i i t h che zxce9t:on o f Er. Randal 1 , tesciinony from

3;

1 ~ i f n e s ~tine
~s

par-cicipated i n o r who wera fami 1 i a r w i z h t h I080
~
baiting program
was to the e f f e c t th{lC deaths of non-target species from the b a i t s

were minimal

.

B e c a ~ s eo f t n e charac12r-i s ti c i at.2ncy period f c r t o x i c

e f f e c t a f t e r the ingestion o f Compound 1080, i t i s p r o b a b l e t h a t x n y
animals and birds feeding on the s t a t i o n s and receiving a l e t h a l dose
would n o t d i e i n the i m e d i a t e v i c i n i t y .

The svidencz i s t h a t s e a r c k s

f o r birds and animals t h o u g h t t o have been poisoned by ~ h es t a t i o n s
were c h i e f l y conducted a t the time of disposal o f remains of the b a i t s

and t h a t these searches varied widely i n scope and i n t e n s i r y .

Sy t h a t

;i rds

2nc

dnjra!

:ocu:c

5 .

3u:22u

p o i i c y :ai l 2 d f c r :5e reporr'

"3

o f coyotes as 3,ueli a s ncn-tjrger ;?eci?s fcl;nd in juch searckes,

#r. Randall i'ndicated tnar. t h i s uas for 7ublic r e l a ~ i o n jpurgoses

~ R C

c a c i t understanding among f i e l d personnel u l t h rihorn

t h a t thera was

he was f a m i l i a r t h a t the actual magnitude o f non-target deaths not

be r z ~ o r t e d .
190.

Aanda! 1 r e s t i f i ed chat he

i3rX10nly fll;!Id

dezd i a d ~ e r s,n, p& p- ,r 1 ca0

b a i i s o r ;he remains of such s ~ a c i o n s . de explainel i h a i saocers
~ o u l ddig a hole underneatn :he s t a t i o n i n a atzempt t o orag che zea:
into ;he hole f o r t h e i r winisr iaod suooi y. Ye iia7.d

rba: i n cne

ioring as Jany as four dead badgers hould be found i n one hole.
conrras;,

Yr. Johnsan (finding :CS) s;ared ;hat he

badger l i v i n g under

3

In

l a d ooservea i

b a i t stacion h h i c h ap?eared t o be i n ;cod heaicn

a n d i4r. Anderson ( i i nd-ng 116) f e s t i f i d :ha1 badgers frzquently

burrowed beneath b a i t s t a t l c n s , spending t h e i r v i n t e r s there and us? n g
the s t a r i o n as

food source without apparenr i l l e f f e c t s .

3

He s t a t e d

thax he had observed t h i s oersonaily on approximaiely one-half dozen
occasions and ;hat

i r had wen mentioned 10 him by others as we1 I .

ke

a t t r i b u t e d a n incident involving the finding of seven dead badgers a t
,

b a i t s t a t i o n s in Texas t o improper dosage caused by use o f i n s u f f i c i e n t
water in t r e a t i n g the horse meat b a i t .

The LD50 f o r a badger i s from

1 . 0 t o 1 . 5 mg/kg , w h i c h indicates t h a t a badger (average weight 19
pounds) would obtain an LCjO dose by consuming from 8.0 ozs t o 13.0 ozs

1080 residues were found i n a sample iram a ccndor, 13 g o l d e n eagles

and one bald eagle received a t the Cenver W j i d l i f ? 2esearch Csnter.

Tests on one of the golden eagle samples *#ere posi zive

L
I

or strychnine.

19i. In the f a l l of 1969, the 3 i v i s i a n of W i l d 1 i ? ? S e r v i c , ? ~;nsci:used

policy o f including a i r a c e r i z e i n I090 solutions
baits.

-I issue

2nd

2

r-trycnnine arc?

samples of a bird or aniinal k i l l e d by e i t h e r o f ;he52

poi sons w a u l d f l uoresce under u i t r a v i si e t 1 i g h t .

Accordi rig

53

Mr. 8andal 1 , he same t r a c s r i ce *das p l acsd i n strychnine and 1 C8G
baics and

WE!

7urpose o f i-,ce !prosram was n o t ;,o nonil-or , , d i i a l i f ?

k i l l e d cy :he b a i t s , b u t t o be i n a 2 o s i i i o n zo d e i e ~ aagainst cls;sj i .

He defended t h i s conclusion as reasonable a s s e r t i n g That x e amount
o f fluoroacatate not converted notild be t r i v i a l even tiloti~n he had no

s p e c i f i c data t o support t h a t concl usion.

Dr. Zimmerman ( findi ng

196) i e s t i f i e d thai d l 1 f l u o r c a c r t a z e uoul d n c t be ccnverted r3

iluaroci t r a t e and t n a t the quantity canverted :vou;d
t i s s u e and the specizs.

>12ry.

v i ~ h;he

Dr. Savzrie i c a t e d t n a t based d c c n

nerahol i sii~ studies a small percentage o i f l uoroacetata d o u l d be
converred t o fl uoroci t r a t e .

Dr. 3ogusky cansi dered t h a i dama~eto

kidneys demonstrz~edby his experiments i o u l d be the same i f

i?uoroci t r a t e a r f l uoroacstai? uere x k e n c r a l i y . He acknowl edged
t h a t he had not perzomed those experjments and t h d i other 5odiiy
functi ons coul d impact i ngesisd F1 uorcci t r 3 t e beiore i I reached
the kidney.

He a l s o acknowledged t h a t the c a n c e n ~ r a t i o n ss f fluoro-

c i t r a t e us2d i n his exper'ments on kidneys

hzve been l e t h a l t o r a t s .

3s

single organs . ~ o u ' i d

Alrhotigh Dr. a o ~ u s k yi s c l e a r l y an

experr on kidneys and t h e i r functions, he i s not an e x p e r t o n
Compound 1080 or the amount of fluoroacetate converted t o f l u o r a c i t r a t e

when ingested.
198. Dr. Zirmerman c i t e d a study ( C a t e r , e t a1 ., 1961) with r a t i treated

with f 1uoroci :rate, whi ch demonstrated marked kidney damage.

He

referred t a another t e s t (Sull ivan, 1979) where r a t s intraduced t o

1 L9

c o ~ c 2 n t r a : i ~ n so f ff;e;.sc;'trat?

; n z r i n k c i : ~: ~ a t z ras :cw as s i x

.i

??n f 3 r

SZVZZ jay5

a i t 2 r 21 days.

izrzse x 13s ~

S ~ C W O7 3
~ r3~:9;c~i~2:

2 ,s

TI; j 5

Rats g i v e n sub-lethal dos2s o f f l u o r o c i r r a c ? i n

dr-inking water )lave been shown t o srow normally f o r seven months
and t h e n t o s u r v i x on a n i n t r a p e r i t o n e a i dose of

normal i y have been f a t a l ( P e t e r r , 1971 ) .

LO

rng/kg wnich dcuid

T h i s i ndi cac3s t h a ~a

c 2 r t s i n t o l e r s n c s f o r f l u o r ~ ctraze
i
mzy be deveiopea.

S ~ u a2s
i ii

by A t z e r t a l s o shcw t h a t regeated s1~b-121ha; dss2s of ~ o n o f l u o r o -

a c 2 t a t 2 h a v e increased che t a l e r a n c e o f scme s g e c i e s ,

e a g l e s , r a t s , mica and possibly rbesus nonkeys.

l.g.,

9 o1l Ad a, .q

Repea tzd s u b - i e t h a l

dosss of ~ o n o f ? u o r o a c e t a t ei n dogs, guinea p i g s , rabbi^; ana ~ al alr d
ducks, hcwever, accumulatod t o l e t h a l l e v e l s .

3 r . 3ogusky ?oinc?d

o u t ~ h a ethe reason more data ~wasn't avai l a b 1 3 o n rlhether f l ~ o r o a c s ~ ~ : ~

a c c u m u l a ~ e swas because i; ,das s o tox'c 2nd c h a t animals i n :he ,di:d
would n o t normally r z c s i v e x p e a t e d jub-lethal d o s e s .
Issue 6
139. Sodi urn rnonofl uoroacetate i s a xhi t 2 , ordor? e s s , powdery, f 1 uoro-

organic s a l t s i m i l a r in apgearanc? t o f l o u r , pcwderad sugar
baking powder.

3r

I t i s e s s e n t i a l l y t a s t e l e s s , h a v i n g o n l y a mild

s a l t y , sour o r vinegar t a s t e t o i n d i v i d u a l s .

I t i s highly s o l u a o l e

i n w a t e r , b u t r e l a t i v e l y i n s o l u a b l e i n o r g a n i c s o l v e n t s such as
kerosene, a l c o h o l , acetone, o r i n animal and vegetable f a t s and oi 1 s .
Sodium f l u o r o a c e t a t e i s absorbed t h r o u g h the g a s t r o i n t e s t i n a l t r a c t ,
t h r o u g h open wounds a n d the pulminary e p i t h e l i u m , the l i n i n g covering

a i r ??ssag?s i n t h e l u n g s .

1:

ij

5o.c

r e 2 c i . i ~3bszr5als' 2 ~ n r g u g h

cata

due t o rhe scrongth of tho c ~ r b o n - f l a o r j c e kona.

(finding 181 ) , however, indicat? t h a t iluoroacecate broaksdown i n
the s o i l , being deccm~osedby e r t a i n s o i l b a c t e r i a .

Sodium

fluoroacetate poisoning i s characlzrized by a l a z n c y period o f
from one-half hour co clrlo $cur3 a f t 2 r insestf on, ~ h i c hi s r e l ~ t e d
co tne me~akoli c prqczss2s gescri bed akove ( f in d i ng 1 5 6 ) .
usual 1 y ldi thi n 24 hours a i w r ingestion.

Death is

Dr. Barry ?umack, Associ a 2

i'rcfesscr of Pediatricr a t tne Universixy of Colorado, Ui reczor o f
the Rocky ILlountain Poison Control Center, Denver and a ~~virlnessf o r
Jefenders, : 2 s ~ i f i s d t h a t he d i d noE c ~ n s i d e rsodium f;uoroacetats
r o be an acc!irnulative p o i s o n in the c h r ~ n o l o g i csense.

fie indicatob

t h a t the l a z ~ n c ygeriod in a numan may be a s long 3s =ive hours.

2GO. Reported deaths a t t r i b u t a b l e t o 1020 have been in connection ( ~t hi i 2
use as a rodenticide r a t h e r than us2 as a prsdacide.

Dr. Rumack

( f i n d i n g 199) contended t h a t t h i s was i r r e l e v a n t because ICSO was
hishly toxic however used.

H2

t e s t i f i e d t h a t 7080 poisonings wer?

d i f f i c u i t t o diacjnos2 and t h ~ zany
t
goisonings were l i k z l y t o go
unreported.

Evidence in the record i s to the e f f e c t t h a t individuals

handling or exposed to 1080 i n connection with precaration of b a i t
s t a t i o n s o r t a x i c c o l l a r s did not s u f f e r any i l l e f f x t s provided
proper precautions such as wearing protective clothing were taken.
For example, Mr. Charles Howard (finding 71 ) ruptured the r e s e r v o i r
frcm a t o x i c c o l l a r i n the process o f adjusting o r removing a c o l l a r

4

fr?m a goac, sp;

with air;.

.*.
i

.
! I ng

;he

j ~ l u C j , : n ,;n :?j 5 iafirjs.

,-e trashed h i s
"

Nr. 2andal l ast ti if e i that i n che caurse o f injec:i,~g

meat b a i t s w i t h 7C80 s o l u t i o n , t h e solution 4r?qu2nzIy s?i173d cn
his pants and shoes.

He suffered na i l l e f f e c t s .

201. Mr. Glenn Oahien, a Gunnison County, Colorado, Deputll Sheriff

became i l l and began hal1ucina:ing

a f t 2 r handling a 9ieco o f eat

i n a p i a s t i c %rapper i n t h e c m r s e of inveszisa-;i!~ga c c m o l a i ~ t

concerning z n e poisoning o f same dogs.

:l!r. 3 a h I s n &as hospicaiizec,

t r e a t z d and rel~assd. Subsequent x s z s r2vealed t h a t ~ h exeac
contained 7080. A ? chougn 'lr. BanJen did not touch other ckan che
wrapper i n which  e i n g

admi ni scered scdi urn f7 u o r o a c s ~ a ~ z 0f
. cznc2rn her? i s ,he 3 s s ? r r i on
t h a t an animal administered 1080 i s i n agony.
depend on whether the animal i s c m s c i o u s .

be answercd with c e r t 3 i n t y from evidmc:

This would seen co

While t h i s question cannot

i n the record, Dr. gurnack,

describing t h ? smptcms of lGSO poisoning, szatad rSa1 pati2nz; o i t a n
complain of a t a r t , sour t a s c 2 i n heir x o u ~ n s . He ass2rt2d c n a t :Re
unpleasan-c

:=st2

ivas soon i o l lowed by nausea z n d i s r v c m i ~ng
i , ;; ngl ;ng

sensations in che nose, spreading t o the ams and legs and f a c i a ;
numbness.

S ti 11 1 a x r , i n morg serious ~ osoni
i ngs , the pazi z n t s u f f ~ r - s

soasinodic muscle c c n t ~ a c t i o n sfollowed

3y

generalized s e i z u r s .

Dr. 2urnack explained chac t h e most serious 1080 sympxomz prjrnari 1y
involve the c ~ n c r a lnervous s y s t m and t ~ cardiovascular
e
systsm
that

aft27

and

the numbness, t i n g l i n g , lccntractions a n d s e i z ~ r e sr e f z r r l d

t o a b o v e , pazients may a l s o s u f f e r from agitacicn foliowed by de?rsssed
consciousness and eventilally ccma and d e l t h .

I t i: the hyi;2r3cti1licy,

muscle contractions and seizures t h a t g i v e the vi2vter the impression
t h a r an animal dying from 1080 i s in a s o n y .

In t h i s ccnnection, the

only apparent mention o f pain in the hospital record of Shelley Voodward
( f i n d i n g 204) i s ,dhen she began t o recover a f t e r 53 hours.

i n any

e v e n t , a n i m a l s caught i n t r a p s and snares and wounded, b u t not k i l l e d ,

a f t e r being s h o t , a r e a l s o l i k e l y t o be i n agony.

226.

,2,:

. .
, ,
:hcc;gn !,(ycmini; has app; i z d =;r c ~ ; ?rcci
Y s;.ra<:

, .

on

-

,-

ST,

m u c n p s z f i ~;:,?'

in a snear posz fomulazicn, water. 3lr. 3ur5ee
Cescri bed a smear ? a s t

2s

'

a 4 x 4 post i n t o ~,vhichholes werg d r i ? led

or whicn was scored with an axe i n order to hold scenr nat2ridl acd
which was p l a c d i n the c2nter of an a p p r o x i n a t ~ l y2:-squar2

fcot

~ n c l o s u r e . He explained t h a t f i v e barbed t,vires Idere uszd f o r enclosing
the post i f the post was used on sheep range and four i f the 8;ost

The52 wir3s %er2 f o r the pur?ose o7 keeqing i i v e s m c k

on c a t t l e range.
away from the oost
ar,d b i r d s .

3rd

~ o u l dn o t prevent 2nrr-y by jogs, ima;l ~ a , m a l s

The f o n u l a z i o n used was m o ouncgs o f 1380 3

scsnt n a t e r i a l .

*as

3 221 :on

of

Mr. 3urgee r 2 f e r r ~ dt o the s c a q~ a t e r i a l us& as Y-W

w i t h o u t filrther explanaiion.

;-le indicatzd t h a t there was lanolin in

the formulation, t h a t i t readily stuck zo ~ h eposz and :hat
would be s u f f i c i e n t to t r e a c a; 12ast three posxs.

on2

~allon

Smear 7 ~ ~ x
would
8

be placed near driw s t a t i o n s ( d e b d 1 ivestock) , t h o intenz k i n g t h a t
coyotes would be a t t r a c t e d t o the post by the scent material and in
\

the course of licking i t would receive a lethal dose o f 1080.

lu';,oniingls

application i s s i l e n t a s t o the scent o r a t t r a c t a n t t o be used and the
adhesive t o enable the formulation t o s t i c k t o the post.

and cold-weazner xonths.

Se indjcato?

:gat

Torn s 3 u i d be ~ s ? d

depending on predation and the nunber o f sheep.

Given ;he corrsn; i o s

o f horses, which he referred t o as "tankers" and )/nich he used a i ICE0

b a i t 5 p r i o r t o 1972, and the f a c t t h a t t h e rancher usually i ~ r n i s h e drhe
p o s t s and r i re, #r. 3urgee i e s t i f i e d chat iiiiear posts were chedper than

dlzhough his experience :vi rb smear pcs:s

b a i t starions.

three cons:rr;cted

Has

li.ni t e d t o

for experimental pur7oses in t h e ai n ~ e ro f 7 G56-57,

Nr. Burgee t e s i i f i e d chat chey ere e i f x t i v e , a s s e r : ~ng :he:

rte had

w a i l e d and idenrified by green aye coyores t h a t were tillsd 5y :ne
smear pos-s.

%e s t a t e d :ha:

ne had ? o t found any non-tar;ec

n e i r smear posts because ihere *as 1 e
during cbe win;-?re

3nina:i

--.
i r no non-'.zrgec :,ra:Tic

-7

-.

35;

TO CONTROL STOCK-KILLING C O Y O T E S
SHEEP

OR GOATS IN THIS AREA A R E W E A R I N G

NECK C O L i A R S T H A T CObITAIN A P O I S O N , C O M F O U N O 1080
(Sodium Fluoroacetaie)

DO NOT TOUCH COLLARED LIVESTOCK,

COLLARS, OR DEAD AN1,MALS.
DO NOT R.EI,EASE LIVESTOCK
I

i

-EL V E N E N O ,

4

COMPUESTO 1080,

.

J

E S T ~EN UN C O L L A R T ~ X I,C
OEN LAS O V E J A S 0 CABRAS .QGE
ESTAN ATADAS

NO TOQUE LOS ANIMALES, LOS
MUERTOS. NO SUELTEAl!.w.4S
OVEJAS
0 CABRAS,,

. 2 1 1 j

)

3

J

>
) - -

I

0
i.n
i
5

-5

5 5.
in - w
0
J

LL

.a

--hm
--'.
a
m

a c t

o ro
3

m
I
,-t

P,

-

x
--'-

< fi

C D O

ad

L n <
r I ill

a-s

i

0 - 5

~

0
3 r t U1
0 0
0
---r

<

3 m

C l n

-0 C-t

-i>
n
ID

cto

mc n

a

0-50
lil 13-I
3

-'.

-*

c-t h c l 2 . 2.

-

-0 3 ol
D. -5

I

-

13

3

rl
1L

0

2

a-5

I0

n--I

0

-2-

A

2.

aas.
'-+mnJ

olo
3 3

(U21C-i

er,

a r t m
d

.

o
-h

l-i

I n 0

9.

tihere c21 i a r s a;-E i n US?, ? ~ C Rl o ~ i c a lp o j r t o f access ;;all 3 2
cons;.ic~cuslj/ pcsred :v.i :h a ~ i i n; p a l ( E n g l i sh/S;anl s h ) ;.iarninqn: ;
no^ I e s j cnan 3" x 19" i n s i z s .
Sich sicjns s n a l l be inspecc?~
weekly to i nsurs chei r csnxinued presenco and I egi h i 1 it y , and :ri 1 1
be removed when c o l l a r s ore rmoved.

10.

Each c o l l a r i n use s h a l l be inspected by the a p p l i c a t o r a t l e a s t
once a week t o insure t h a t i t i s properly positioned and unbrok3n.

11.

Damaged a r broken coil a r s shall be removed from the f i e 1 d and ei the?
returned t a the manufacturer f ~ rre p a i r or disposed o f properly.

12.

Disposal o f ?unctured o r unserviceabla c s l l a r s and contamjnated
animaT remains, vegetation and s o i l shall be acc~rnu1ishedby deep
burial a t a safe l o c a t i o n , preferabiy on property owned or managed
by the appl i c a t o r .

13.

A l l persons authorized t o possess and use 1080 c o l l a r s snail s t o r e
such c o l l a r s under lock and key i n a d r y place away from fooa, Peed,
domestic animals and corrosive c h m i c a l s . Collars q ~ i 7 1not be jtcred
i n any s t r u c t u r e occupied by humans.

-.
7

% i t s j h a i l be pro?arzd, s o l d or t r a n s f 2 r r z d and usza c n i y by
Feaer-21 g r Staz3 employees responsibi? i3r 5 n i i r a j t a ~ a g ec ~ n s r 3 1
( , G C C ) , 'clno a r 2 cer-,i-;'i SCI q p ' i icztgrf.

(a)

-

T r a i n i n g i n i a 7 ~hand1 i ng and q i a c m e n z

3 f

iri~s,

(j) i r a i n i n g i n d i s o o s a ! o f b a i ~ r ,c s n ~ m i n a 2 a: n ; ~ a l

rornai ns , and ancmi n a c d 'ie.;ecaci
f
far sr3c;iczl
:r?:cx.n:
( c ) I n s ~ r u c tons
numans and Icnssi7 c 2n!zial s ,
d .
( c ) 1,is;ruc~ions on ~ ~ ~ k3s erp i ng
L

-

12n 2nd

;c;

I,

-

c i 1223 ;o; ;onips :n

s.

% i t s s h a i i c o n ~ a i na n i n z c t i \ l e :ye una",",rzc=iv?
i d 2 r r t i f i a o l ~by humans.

6.

Saics snai 1 j e ? l s c ? d o n l y a f t ? ? , ~ e r i ; ' i c a ~ i o n5 : ~F?a?ra'I 3r S t 3 ~
AOC p e r r a n n e l t h a ~a c g y c t ? k i l l o r k i l l s i a v e c c c u r r o d . 521 ?c:ion
of b a i ~j i t z s ~ c 313cz'i:snt
d
;hall be o n l y by q u a l i f i 2 d ACC 7 ~ r s o n n e l
wno are c ~ r zf ii ed z?pl i cacsrs .

7.

aai-ts shaii iloc

8.

Z a i t s i n a y b e p l a c ~ di n c o n j u n c t i o n with araw s t 3 t i o n s ( ~ n i a a l
czrcass2s). However, not more chan ?do b a i c s s n a l 1 be g l a c d 2 :
any one draw s c a t i o n and no Tor? than one of such s t t c i g n s ar ?do
b a i t s shall be located on one s2ccion (540 acres) o f l a n d .

9.

B a i t s s h a i i be c o v e r e d w i t h cow c n i p s , s t o n e s , Srzss o r hay 3 r
eirnil?r maioria.1 s . !f b a i t s c a n n o t be covered. i a i c s w i 11 not be

::,i i r d s 2nd r?:~,:

p l z c e d w i t h i n 300 i e e x o f ope9 ( ~ a t e or r near2r
than one ni1e t o occgpied human swellings.

p-iated.

1 2 - Nhen b a i c s a r ? ' ~ i x z d each
,
logical ;a;nt 07 Zccssr j h a i i ke
conspicucus::/ ?os:=!
:gi t h 3 5i 1 in p a l (Engl i s h/Spzni sn) ~,.rarni
ncj s i si:
n o t less than 3" x 10" i n s i z o . S i g n s w i 7 1 b e inspectzd ~ e 2 4 1 ;2~n d
w i l l be r m o v e d ahen b a i t s are removed or- deter;nined
have been
cansurried.

2 .

;1CC perscnne: ;ha1 1

rzcsrcs of :he 'I?liilz?r, 13~3::'377
~ I a c s a , A 3 2 1 2 i 12c nao jhowirlg :ac.tior; c f
S a i x placgd s n a i l a l s o be nainrained.

ana a a t s sai ts

14.

~ S S Dlrlri ct.5

'rue72

,
2egorts C T.. 17man
i n j ~ r i e s3nd of a i : a n i g a l s z s ~ n t, a r ; e ~
a s non-sarges, ~i
:1 5e ?a62 2y XCC :ersaccel l o ,?$ a r :ne
~ p p r c p r -az2
i
S i310 r 2 z u i azsry a g e m y .

2:

-

-

,dell


File Typeapplication/pdf
File TitleNotice of Hearing on the Application to Use Sodium Fluoroacetate (Compound 1080) to control Predators
SubjectNotice of Hearing on the Application to Use Sodium Fluoroacetate (Compound 1080) to control Predators, FIFRA Docket No. 502
AuthorUS EPA/Office of Administrative Law Judges
File Modified2007-12-10
File Created2007-12-06

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