We have 8 chickens. One of them, the Americauna is getting picked on. We noticed some down like feather on her back tail where her top feathers had been picked out. When I went out today, there was a hole, and blood. : ( We put her in a rabbit hutch next to the run so she could see the other chickens and they could see her, but not hurt her anymore. We sprayed blu-kote on her back tail where the blood is. Then I noticed one of the RIR had some down like feathers showing like she was getting her feathers picked out too. Can I spray something on them to make them stop? How about the bitter apple that i use to stop my dog from chewing on the furniture when he was a puppy? Any ideas?