Does this look like rooster damage? We have 16 laying hens and 1 accidental rooster. He is well behaved towards us so we have kept him so far, (even though he is LOUD!) But now about 7 of the hens look pretty terrible. They are completely bald on their backs and almost all the way the base of their tails. The rest that aren't bald still have some damage to the base of the tail and backs. I've examined them and don't see bugs, the feathers are just broken off. Then the hens seem to be pecking themselves and each other bald when the feathers try to grow in. We are in the process of finding the rooster a new home, and possibly using those chicken saddles to help the feathers grow back. Here are some pictures of the worst ones and the Buff Orpington shows what the feathers look like on the better ones. The only ones with NO damage to their feathers are the larger hens. That's why I think it has to be rooster damage and not mites or lice.