Another Chicken

I came home from work and found another pile of feather from another chicken. It is so depressing knowing there is a predator out there hunting your chickens and you cannot find it. We have called people to come help and they were supposed to, but never heard from them again. We have not seen the coyote again, but I know it is the coyote, I just know it. I do not know which chicken it was, but she is gone. I just hate it.