My GLW cockerel was fine yesterday, but today when I looked in the coop, he was laying down with his head cocked to the left, and he won't put ANY pressure on his left leg. His eyes are wide open, no droopy wings. I don't know what's wrong! Help! EDIT: We put him in a cat crate and brought him inside to stay warm. Both of his eyes are responsive so I don't think its a brain infection. My thought is that one of the other roosters attacked him and knocked him into the coop wall pretty hard... What should I do???