I am watching my aunts chickens for her and I let them out of their pen area at 6pm when I went to close them up at about 9pm there were only 2 of the 7 chickens in their coop. My aunt said that they would go back into it on their own. I found a pile of feathers outside their coop which makes me think that some kind of predator got at least one them. But the feathers were all brown and 2 of the missing chickens are black which makes me think maybe a fox or something got one and the rest ran away to hide somewhere? Do chickens do this? What things should I do in the morning to try and find them and what kinds of places should I look? I really hope they arent all dead I would feel really bad if that many of her chickens died while I was watching them. They are all hens and there is her backyard which is open with a garden and lots of plants in it and her yard is surrounded by woods.