You are wasting time. Buy you a trap. There are numerous trap companies out there. I prefer and use Pied Piper live traps. Built in Texas. I trap predators and fur bearers, and have used a number of live traps. The Pied Piper is by far the best. They even have one that has a cage on the back of it, that you can put a live chicken in it. You can bait it wit about anything. Dry dog food all the way to sardines. I think you either have a fox or a coon. I doubt a coyote would have killed a number of chickens, and only ate parts of them. Coyotes seldom waste a meal. Mink and possums will kill chickens and eat the head only, but, possums sooner or later, will eat out the soft part of the bird.