My Buff Orp has a bad injury. We have a coop that is the size of a horse stall, attached to an outdoor pen. We live in the NE so they are not going out that much. I have a flock of 5, 2 Orps, 2 EEs, and 1 black langshan rooster. We did not expect the rooster, just happened with the order. We wanted to only have hens. They are 8 months old and laying. Anyway, this 1 orp has been losing feathers around her rump for a couple of weeks now. Today I noticed a red spot and went to take a closer look. It looks like behind her wing there is pecking down to her muscles, and the skin is separated from her side. What can I do to help her? I don't think I will keep the rooster at this point. He has attacked me 3 times and I have small children. Just want to figure out a way to save the hen. She is eating and drinking and doesn't seem lethargic or anything. Thanks for any help/advice. This is so upsetting to us. One last question - could this be from the other hens? Thanks.