Hello, I am new to the board and chickens and could really use some advice. My husband used to have chickens and I loved them, so we decided to get 3 Buff Brahma chicks (all hens) in April for pet/egg purposes to get back into it. When I am at work, I keep them in an 8x4x6 multilevel pen, and whenever I am home they are freerange until night when they put themselves back to bed. All was well until yesterday, when I noticed one of the chickens (the smallest) bleeding from her ear and lobe area with a pretty deep gash. I watched them for a while and noticed the others were picking at her. We decided to separate her into a small pen for the night and most of today to give her a chance to heal. This evening, I let them all out together and everything seemed fine, but then she started to fight (really fight!) with one of the others. I broke them up, then she went off on her own and wouldn't go near the others and went to bed in the large pen much earlier than the others. After a little noise, the others joined her and I watched for nearly an hour to make sure there was no trouble. I don't know what to do because I want her to heal without them picking at her, but I don't want to make things worse by isolating her. I feed them scratch, vegetables, and cereals...could they be doing it because of protein deficiency? Or boredom? Should I put something on the wound and leave her with them? Should I separate them until she heals? Any advice would be much appreciated!