I just went out to check in the girls and found one of my marans with an injury. I just got her last night. When I got her she was pecked clean to the skin on her neck and had wing and tail feathers pecked out. The previous owner had 6 hens in a 2' by 3' coop with hardly any run. She said these two were the "mean" ones and suggested the bird was pecking herself, but she's pecked all the way to the ear. I thought she'd be fine since there was no blood but I guess I was wrong. I found this wound on her wing. What do I do? I pulled her and the other one I got out as they were both getting pecked. What do I do!?