I have a young rooster who is acting very strange. I found him in the coop day before yesterday laying face down. I didn't think much of it until I went to pick him up. His head was floppy and he was stumbling around. I keep him by himself most of day. I usually let the chickens out for an hour or so before in the afternoon. He seemed to be fine so I let him out with the other chickens. He was fine when I put them all up. I went out today he and he was acting messed up again. I don't know if he is sick or if the other chickens are beating him up. I don't see any visible signs. Please help.