I have eight hens, about 9 months old. For about three months, my Rhode Island Red has had red, bare skin showing above and below her tail feathers and on her sides behind her legs. It looks like some of her tail feathers have been broken-off flush with her skin. She seems active and eats well, but the loss of feathers is gross-looking and worries me. This weekend, I noticed that one of my Buff Orpingtons is losing feathers on her sides. Not as bad as the Red (yet), but it is still concerning. I cleaned out their coop, put in fresh bedding and looked closely at the Red, but can't see any mites/lice (but I may just not know what to look for). I am very concerned about the Red (much more advanced case) and am worried that the problem is spreading to the other hens. The first photo shows the topside of the Red's tail. The second photo shows what's happening to the Buff. Take a look and HELP ME if you can! I am worried about my girls!