I noticed this afternoon that my wynadotte is missing lots of tail feathers. Upon closer inspection, I noticed that she is missing a lot of feathers around her neck and some on her back. I put the whole flock outside and watched 2 of them constantly pick at her. What is this behavior? Is something wrong with her and they are picking at her because she's sick? Right now my daughter is holding her on the bed and her eyes are closed. Poor little thing. What does this mean and what do I do for her? Should I separate her fro the others? I feel horrible!!