LETTERS [Dec 1997]
From ANIMAL PEOPLE, December 1997:
Servicing coyotes
The Wildlife Services division of the
USDA, formerly Animal Damage Control,
recently published findings from a study using
lithium chloride balls as an aversive conditioner
for coyotes.
Lithium chloride is an emetic. It
causes the coyotes severe vomiting. It has
been used in Saskatchewan and Manitoba for
over 30 years with excellent results. It does
not kill coyotes––just trains them to avoid certain
food sources. In Canada, ranchers inject
45% lithium chloride into dead sheep, placing
them in areas that coyotes frequent. Coyotes
learn to associate sheep with violent illness,
and therefore avoid sheep.