I checked on my 8 week old chicks this evening and all of the sudden 2 of them have raw backs and feathers everywhere! I stood there to try and see if I could figure out what was going on, and my blue orpington went around and was pecking them! I just moved them to the coop 2 days ago. They have tons of room, food and water... there was no issues in the brooder. Who has suggestions!?