I would appreciate anyone taking a look at my pictures and see if you can give me some suggestions as to what to do with this Roo. I dont think it is illness, he was fine one day and the next he had lost feathers from his backside and bum. A possum/coon must have grabbed him thru the fence. Hes a big buff brahma and he will fight back. He acts fine, I did notice the other chickens pecking at his bum though. I read it might be due to more protein needed so I feed them cooked ground beef with egg in it a couple of times a week. Im not sure what I should do. Thanks for your help. I hope the pictures are clear.