Hello, My top-of-the-flock 1-yr-old hen has a red belly with almost no feathers. I haven't seen her pick at it. It is not bloody. The skin just looks really inflamed. She has absolutely no other symptoms. She's eating fine, laying fine, acting normal, etc. It flares up and down a little bit. I don't see mites or anything. All the other chickens are normal. She's had this red belly for 4-6 weeks probably. Any ideas? Is she OK? Solutions?