Hello, I wonder if anybody can offer any advice on the following. We adopted four ex battery hens in East Anglia, UK in June this year. They seem to be doing fine generally, and all continue to lay consistently. One however has a bald spot at the base of her tail about two inches in diameter, the feathers here regular start to re grow but then seem to get removed somehow before they get established, and we have spotted a small amount of blood here on the odd occasion. She also has very sparse feathers on her lower abdomen (between her legs). The funny thing is, this chicken doesn't seem to get pecked or bullied by any of the others in fact she seems to be at the top of the pecking order and often intervenes to resolve fights between the others! We have tried red mite powder and Gentian Violet antiseptic spray, neither seems to have helped. This hen is our most consistent layer but looks a bit of a sorry state, and we'd love to see her feathers re grow. Is it possible that she is getting pecked at night by the others in the house (and perhaps even tolerates this), or that she is doing it to herself? Any advice would be very welcome. Thanks, S.