My 1.5 year old black sex link has decided today is the day to try out her new plucked hair style.... For quite a few months she has been bare on her chest area I believe because she wanted to keep her eggs warm. I don't have a rooster and I have just stopped her being broody about 4 days ago. Well after I came home from school I let my chicks out to free range and she came out, but she has 1 tail feather and had picked herself on her backside, and on her back near her tail. The feathers that I assume are hers are in a neat and tidy pile on the dropping board under her usual roost. I am worried because living in Western Montana the winters will get extremely cold, will she get frostbite? The other chickens are not too aggressive to her and I have plenty of room for my 11 hens. Is there anything I can do? Is she going mad?!