Allow me a moment to fill in my readers who are not "country" folks, here.
Canis Latrans, the common coyote. Best known around the country for their nocturnal singing, which many call the "pack song", when healthy and well fed, they are actually a pretty impressive sight.
If you would like to see a healthy, and well fed coyote, go to the zoo, it's about the only place you'll find one.
In the wild, they are often infected with mange, and half-starved. Also, highly susceptible to rabies.
It was only a few years ago that the state of Colorado offered a bounty on coyote ears, as the population overran the resources of the area.
Now here's the kicker. If a single coyote out hunting happens upon a cow that's down calving, possibly having trouble, it will call in the pack.
Unlike most predators, who instinctively kill their dinner before they start eating, if a coyote can get one leg to stop kicking, they'll start eating that leg. They'll attack the nerve bundle at the base of a cow's tail, and paralyze her, and eat her alive from the ass up.
Last night, we had to put a heifer down because between the time we found her and realized she was having problems calving, got a trailer, and got back out there, coyotes had stripped the calf's head down to skull, and tore hell out of her back end.
Once a coyote pack gets one cow that way, they've figured out an easy meal. They'll go after any calving cow they can find. The only solution is to kill the entire pack before they can kill your entire herd.
We're working on it. The Game Warden is working on it... He went right out with a rifle when we called to inform him of the incident, and that we'd be killing the bastards responsible. He said he'd leave the carcasses lay where he shot them, so this afternoon we'll go out and see how many of them he managed to get.
Tonight, Bro is going out, with his buddy, his spot light, one of Farmdad's rifles and grandpa's coyote call...
He's a better coyote hunter than I am, or I'd be right out there with him. I'm giving up the satisfaction of seeing the sumbitches die in the interests of having more of them die in a more efficient manner.