In the county I used to live in the coyotes were packing up and killing cattle and horses. So they introduced wolves which reduced the coyote population, they started to kill cattle and horses. Someone decided cougars and wolves don't get along, so they introduced them to kill/run off the wolves but now the cougars prefer to kill cattle and horses. Now there are still packs of coyotes, although not as many, packs of wolves and cougars ... all killing cattle and horses.all because some animal rights types couldn’t handle the idea of thinning the coyotes to a manageable level. Go figure. In the meantime the deer population is exploding because fenced in cattle and horses are easier prey. I don’t know what they will introduce for that.