Her feathers are missing on her butt. not 100% I washed her off, I thought maybe she had prolasped but I found a non-hardened shell on the ground and the remains of an egg in the nest. I have 3 mature rock hens that lay she is one of them. I also have two 18 week old Aussie Orp hens (non-laying) and two roosters same age. I have 6 EE's pullets 6 weeks old. The EE's are not with the others yet because they are too young but do you guys think this hen is sick or are the roosters just wearing her butt out, and I mean this literally. The roosters don't fight too much, but I am thinking of getting rid of one but then again I have a lot of hawks in my area.