This is Nugget, and her tail base. She and Wynnie were Roopeccas favorites. When I first put Roopecca in the guest house I suspected this was caused by him. Wynnie has a bare reddish butt too. Since its only those 2 hens with this I figured he was overly amorous. They both seemed to be growing back feathers slowly. Today Nugget looked like this. I was able to catch her and get a close look and pictures. I looked under her wing and her butt but it all looks clean. There are some dark specks but they were sun bathing and this looks more like dirt specks to me. I wasn't able to catch Wynnie, never can. I don't like the way her butt looks today either. Just not quite as "healing" as it seemed. This is the base of Nuggets tail.