My chicken Goldie is a small gold/white bantam, who is pecking out all of my other chickens feathers and eating them. In most cases she is drawing quite a bit of blood, because you can see reddy brown scab patches on their skin. I don't know what the problem is, I have quite a large pen for them, with trees and bushes to dustbath/sunbath under etc, and I don't want to cull her, I love her, but I think it is getting a bit out of hand and don't know what to do. Please help?!