I don't know how old she is, got her a couple of years ago from a couple of ladies who didn't know her age. She walks crooked since it appears her neck was broken at one time or she has a birth defect. A large bone is jutting out from the side of her neck coming from her breast bone I think. she is my favorite because she makes a nice "cooing" sound whenever she sees me come out of the house. Last summer she lost a lot of feathers in her chest area and on the top of her wings. They never grew back, even though i would rub oil on her skin since it looked red and painful. she is now going into more of a molt and with Winter coming on am concerned she may have trouble staying warm. She normally is the first to come racing out of the coop when I open the door and tell them "Let's go scratching!!" which I do every night since their normal run that is fenced is quite barren.. (12 chickens in a 50 x 50 enclosure.) Stacey did not come out tonight and was making mournful sounds and would not eat her special treat i give her every night. I know this sounds ridiculous but I was thinking of getting an old wool sweater and somehow making a little "coat" for her, with holes cut out for her wings and legs so she will be warmer. Am I being a little too overly concerned for her? I have been giving her a little hamburger meat every night for the extra protein to grow the feathers back but no luck. I can't find any mites on her that may be eating the feathers. Could she have some intestinal parasite? all the other chickens are healthy.