I have some hens that are missing feathers on their backs. We thought it was from our roo, but he has been gone (RIP Roy, you big meany!) for a few months now. It is mainly on their backs, they are healthy otherwise, no signs of parasites, etc. thought they were molting, but they never went any farther than the feathers on the back. Maybe it has to do with the pecking order?? Thanks in advance, and if I posted in the wrong spot, sorry, didn't think it was an emergency.....