What is it?

by Leah Sorenson

Hello my name is Leah Sorenson, and I have a question. We had 3 roosters and 15 hens and now we only have 1 of each. And we don't know what is killing it. But, today we saw outside our country home that their were grass padded down and feathers just like the chickens. It was by a big pile of rocks. And there were also feathers on a specific on a rock. My mom says it's a fox but I don't know for sher can you help and have an idea of what it is?