I have a Light Brahma rooster, 15 weeks old. As of this past week, he has gotten agressive to the hens by grabbing them on the back of the neck and holding on while they scream bloody murder! I shoo him off when I am outside and don't know if he is doing this while I am at work, or just when he's in my presence. I have 10 hens and 2 roos. He is not aggressive at all to the other roo, who so far hasn't even tried to crow. I'm not sure the Brahma even knows he's a rooster! When the rooster does this, I pick him up and hold him and tell him how bad he is and pet him until he calms down. As far as I can see, the girls aren't doing anything to provoke this behavior, all of a sudden he will fluff up his neck feathers and take off after a group of them and then will single one out and bite her! Am I doing the right thing by picking him up? He hasn't shown any aggression at all towards me or my daughter, who is 12. Help, is this normal???