we are new to this great past time but we have a problem. Our roo has been attacking only one of the hens.....not to mate, but actually has jumped on her and pecked her so badly that the back side of her head has a huge scab on it. We thought this would pass but this behaviour has persisted now for a couple of weeks and only toward this one hen. Is he trying to kill her because he obviously not mating as I know what that looks like. I have already separated him and I like him but what to do next? We have 4 Orpington Buff hens and a roo in a 10 x 10 foot enclosed run and nice coup. thanks for any help.