We currently have one Black Australorp Rooster and 2 hens (buff orpington and golden comet). We got them all when they were chicks this past summer and they have always shared their coop together. This past fall we noticed the hens had plucked and broken all of the poor roo's tail feathers out. We started supplementing their feed with more protein and calcium and this seemed to cure the pecking of the roo. However, over the past few weeks the hens have plucked out nearly all of his saddle feathers and he also has a nasty gaping wound in his neck that seems to be getting worse every morning when I let them out of the chicken house for the day. I am concerned that my hens are bullying my Roo and do not know how to correct this behavior. I have never witnessed it as the girls are always so docile when they are out. I can only assume that it is happening at night when they are all shut in the chicken house. I am afraid I will go out one day and have a dead roo. The chicken house is plenty big for the three of them. It is 3x3 feet with two nesting boxes, two perches and lots of space to hang out. They are only confined to this area overnight then are let out into their run which is about 3x12 feet with more fun chicken stuff for them. We live in MN and the weather has been brutally cold this season and in spite of all of our heat lamps, shelters, heated dishes, etc., our poor Casper (the rooster) still fell victim to frostbite on top of his comb and on the ends of his waddles. Could the hens be sensing that he is not "up-to-par" with his frostbite and are picking on him because he appears "weak" because of it? Either way, I love my boy and am terribly worried about him. Between missing all of his tail and saddle feathers, his gaping neck wound and his frostbite, he just looks absolutely awful!! What can I do to help him?? How do I get the girls to leave him alone? I appreciate any input as this is my first time raising chickens.