I have a rooster who is 5 months old, he is already breeding with the hens and he is very handsome! My problem is that he has been picking on certain hens, yesterday he banshed a hen which is one year old to the coup. I found her wet dirty with her head stuck in a corner and most of her feathers were ripped out on her head which was bloody and swollen, I washed her off and fixed her up and she is ok. Why did my rooster do that to a hen? If I hatch eggs that he fertilized will the chicks be aggressive? He is a Easter Eggar. Thanks for any and all help.