I have 16 pullets that are 25 weeks old and 2 roo's that are the same age. Most of the pullets have started laying now. I have noticed that the roo's are really harsh and sometimes cause damage to my pullets, and seem to gang up on them. Two days ago, I had to remove one of my White Leghorns because they bit and pulled on the back of her head so badly that they pulled the skin and feathers from the back of her head and it was bleeding badly. I brought her into the house and put her inside a cage so I could keep an eye on her. She recovered well. About a week ago, I blended my younger pullets (11 weeks) in with the flock and everything seemed to be doing well. Until tonight.... My son brought me one of my 11 week old's, a Jersey Giant. She was bleeding badly and all of the feathers have been ripped out of her right side and part of the feathers on her right wing has been ripped out also. I don't know what to do for her.... I've never seen anything like this!! Please advise me on how I need to care for her please. This wound goes all the way up her side, under her wing. I couldn't get a better picture. It seemed to hurt her to pull the wing up for a pic. This is a closer image of it. My poor baby!! Would flour or sugar help to stop the bleeding. I don't have any blue coat, but I'm headed into town in the morning to get supplies and anything that I may need. The nasty roosters have been removed from the coop and run area. Could the pullets have done this?? My coop is very secure and so is the run area. We go out and check on them 4-6 times per day as well.