Please help, we are pretty new to this chicken thing and after reading lots on the subject, we decided to isolate a bully hen who was ripping out feathers of the other 3 hens. The first time, she was isolated for 4 days but the feather picking started again as soon as she was with the others again. We put her back in isolation and got her out just a few minutes ago, but there was intense fighting with one of the other hens, they were clinging on hard to eachother and drawing blood. Both are bleeding from the face. This incident freaked me out and I don't know what to do! we put the hen back in her pen alone for now. Should we put her back with them once it's dark? we're afraid if we do so,they'll start again tomorrow morning. I'm afraid one is going to get hurt really bad! what should we do??