I am in desperate need of help. I have raised chickens off and on for about 15 years and have never had this problem to this extent. I have about 70 red production hens that are about a year old. I have never raised this breed before and have never had this problem to this extent. They have a coop that is 8x20x15 with an outdoor run that is 10x 50. plenty of roosts and 25 nesting boxes. heated water and free choice feed, But they keep killing each other. this has been going on periodically since I got them. but recently is much worse. I have had 3 killed in the last 2 weeks and have recused 13 who's butts were raw and bloody. removed 7 today alone. I am ready to start debeaking everyone but really don't like that. Any suggestions at all???