I have a hen who has just started with broody behavior. She is not fully committed yet, as she will not stay in her favorite nest box that I left eggs in. My rooster started brutally attacking her. He is not trying to mate. He is trying to kill her. This has been going on for 5 days now. I have separated them so he can't hurt her anymore. This group has been together for over a year now with no problems. My hens are not picking on her, just the rooster. He is otherwise a very good rooster. I don't want to get rid of either of them, but I don't know what to do. I don't know if she is just too nervous to sit or if she is just taking her time. I really want my daughter to experience having baby chicks. I am willing to keep them separate for as long as I need to but would prefer to know what is causing this and if I can correct it. Has anyone ever had anything like this happen?