Yea if it was hawks the would have came back for all the chickens if they thought it was a cheap meal and they dont leave a while mess as far as I knowSounds like a coon attack to me. Raccoons have been known to kill without intent to eat, while, in my experience, hawks tend to take the whole package. I've seen fox attacks, coon attacks, and hawk attacks. It sounds most like a coon to me. We have started locking all poultry indoors at night after a coon killed our duck and injured two others (who happened to have chunks taken out of their breasts). They are despicable creatures.