We had a Buff Orpington that was 21 1/2 weeks old that we culled this weekend. He was so rough with the hens. He tried to mate while one was laying and tore up a bunch of back feathers. He tore one of their ears almost all the way off. Our Barred Rock is the same age and when I turn my back, he attacks me with his feet. He drew blood on my knee the other day. I carried him around, separated him from the girls, penned him by himself.....I have tried several tactics. He won't attack me if I am facing him, but if I turn my back, he is right on me, and then he runs. It irritates me. How can I assert my dominance?