I have a bantam rooster that I think is pulling out (and eating) the tush feathers of my 6 hens. When they roost for the night, Lil' Pappy lays down behind all the hens that are on the roost. They all have their tushies in his face. They all have naked butts (except one, who faces inward on the roost, smart girl). I have tried uping protein, blue-kote, desitin ointment, to no avail. This has gradually developed since we got him about 3 months ago. At that time I also changed to no-soy organic layer feed. I don't see any pests on the bald butts. I do use DE in the pine shavings. Clean up daily. Any suggestions other that getting rid of him? Is it harmful for the hens to have bald tushies? We are in Central California, so the weather here is rarely cold. Thanks for any help.