I had one chicken that lost her feathers on her bottom. I saw someone before describe it as baboon butt and that is exactly what it looks like. Now 3 weeks later two more are losing theirs. I thought maybe it was mites but I don't see any. Can they be molting- they are almost exactly 1 year old. Possibly stress from the cold?- we live in Florida and it has been very cold here. I noticed the first one losing hers after we had temps in the teens. Anyway- my big concern now is that one of them has some spots of blood on her bottom and I am not sure if it is from pecking or from just the loss of the feathers but I don't want to it to get worse. Can I put something on her so that they don't peck at her. I am a little concerned because it is around her vent area. Thanks for any help.