Over the last few months I've watched my hen EE get picked on by the other hens. She has lost a lot, but not all, of her feathers on her sides and the underside of her neck. She insists on being on the top roost and the others will have nothing of it, this is where (I believe) she has lost most of her feathers. But now all at once she stays in the nest box all day and night and won't come out. I've picked her up and set her down in the yard, but after a while she gets panicked and wants to go back in. Also she has this little nub looking thing back by her tail that she keeps nibbling on and rubbing her head on. Does anyone know what this is?
Am I going to lose her?