Effectiveness of Vichos non-lethal collars in deterring coyote attacks on sheep

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" Effectiveness of Vichos non-lethal collars in deterring coyote attacks on sheep "
Burns, Richard J.; Mason, J. Russell

Document Type	:	AL
Record Number	:	943148
Doc. No	:	LA8wz4h99w
Language of Document	:	English
Main Entry	:	Burns, Richard J.; Mason, J. Russell
Title & Author	:	Effectiveness of Vichos non-lethal collars in deterring coyote attacks on sheep [Article]\ Burns, Richard J.; Mason, J. Russell
Title of Periodical	:	Proceedings of the Vertebrate Pest Conference
Volume/ Issue Number	:	17
Date	:	1996
Abstract	:	Vichos non-lethal collars containing 45 to 105 ml of 3% capsicum oleo resin were evaluated as deterrents to coyote attacks on sheep. Each of five coyotes tested made neck/throat attacks on one collared lamb; four punctured collars and one pulled the collar from a lamb without puncturing it. One coyote did not resume biting the lamb for 60 min; it was retested two and four days later. At two days, the coyote punctured a second collar and briefly halted its attack. At four days, the coyote attacked a third collared lamb but made no attempt to grasp the neck/throat area. In tests resulting in collar punctures (n=5), coyotes immediately stopped their attacks and showed obvious signs of oral irritation; however, attack behavior resumed shortly thereafter (mean= 17 .6 min). Coyotes resuming attacks directed them toward the sides and rears of lambs. The Vichos collar is unlikely to prove effective in controlling coyote predation on sheep.