My 6 month old laying hen (Red Star) started showing feather loss on her lower back near her tail. I have not seen the rooster mate her, but I'm not out there all day. There are some of these feathers laying around the chicken run, but none in the coop. I can't figure out what is going on. She doesn't like me checking out the area with the feather loss. At this point, I'm thinking that I'm going to buy her a saddle/apron, but even her wing feathers are starting to show wear. Any help is greatly appreciated! Here are 2 pictures: I know it is hard to see with her bright white feathers but just two weeks ago she was fully feathered.