I have a white brahma hen about 13 weeks old and she is so mean! She picks and attacks my other chickens: 1 is a road island red hen and the other is a rooster! She even attacks my roo!! Is that normal? I can't have roosters in my house so I have to get rid of him soon but I am thinking about getting rid of my brahma too because I have a easter egger about 6 weeks old that will enter the coop. What should I do?