I have seven hens, all different breeds one is a Cochin. She injured some foot feathers which led to some pecking but I bandaged her feet and she's all healed up now. However, now all six other hens are seriously bullying her! Not pecking her feet anymore but jumping on her back and pecking her comb it's so terrible she stays in the coop all day alone. My flock has always had an established pecking order and my Cochin is definately the most docile but they've never picked on her like this. Is there anything i can do?!