One of our hens has been looking strange lately. Her feathers (Which are normaly a beige-ish color) are looking grey and tattered on her back, near her tail. We haven't had her for a year yet, and we've never had chickens before, so we're not too experienced with molting. What does molting look like? Is this molting, or mites, or feather picking? I'll try to get pic's soon.