For last week my hen has been loosing a lot of feathers. Today Her head is bald and powdery. There's a raccoon that's been coming to the coop every night, (I know cause he leaves scat.) Could the raccoon be trying to get to her? He can't because we made the coop so he can't get in or hurt her. I noticed she has only been losing her feathers under the roost, where she would be at night. Or could my mean hen be picking on her? Even when she was young she would sleep outside while every one else slept in the coop. Or when she did sleep in the coop she would sleep on one roost while the others slept on a different roost. Annie is shy and gets scared when I hold her, but she will not hurt me, or protect herself. Or could it just be something simple like lice? Should I separate her from the others so they don't get sick or they don't hurt her?