I haven't seen whether the roosters or then hens are doing this, but I am thinking that one of the roosters is--- I have 27 chickens total--- and unfortunately 4 of them are roosters. The roosters seem to be getting along pretty well, but the hens may be suffering from too many roosters in the hen house. I have 2 brown leghorns and two white leghorn hens, and the three older roosters are Australorps. I noticed the day before yesterday that One of the white leghorns has a wound, which I thought was just feathers pulled out on the back of her head--- so we put the medicine that helps cover up the blood smell etc. Well, after catching and cleaning up her wound we noticed that one of the brown leghorns has a wound as well--- so we did the same with her---- I went in to check on how things were looking with them both yesterday--- and the brown leghorns wound is way worse--- not only is it larger, but it appears that not only were the feathers plucked out, but the skin has been completely ripped off as well--- I think I can see muscle and am thoroughly grossed out and sickened by the entire thing--- and have been laying awake for hours ( it is 3 am here now) What should I do? I am thinking I am going to have to clean house and kill all of the roosters to be safe. The hens with the large wounds are probably going to have to be put out of their misery as well right? I mean, the brown leghorn can't live with a wound that bad? right?