Benefits of multispecies grazing are often overshadowed by ineffective predator control programs (Baker 1985). The coyote (Canis latrans) is probably one of north America's most versatile predators and continues to present one of the greatest challenges to United States sheep and goat producers (Green 1987). These producers have had varying degrees of success using steel traps, poisoned baits, calling and shooting, aerial gunning, guarding animals (primarily dogs) and electrified fences, used singly or in combination. During 1983, 63 of 144 sheep died while managed under free-ranging conditions on the Jornada Experimental Range, most were killed by coyotes (Hulet et al. 1987b).