Today as I was going to the coop to check for eggs and my Dark Brahma roo jumped up and attacked my leg from behind. They free range all day. He has never been agressive before. Lately he has also been attacking my sussex hen and today one of the cochin hens. By attacking I mean attacking not acting like he wants to breed them. Should I get rid of him or what?
It seems he sees you as the alpha roo and wants to challenge you for the title. There are some who say you can gentle a rooster after it has become aggressive. I haven't had any luck trying the two methods suggested to me. Either learn to carry a stick to chase him away, or get rid of him. If there are small or elderly people at your place, you may be better off re-homing the roo. Some will say that the stock pot is the best place for him.
WOW I just read that article that Dawn sent (above a few comments) and it was very interesting! I am SO going to do that! I have been with my Serama and it IS working. He was trying to bite me when I would reach in for a chick. I let him know it's not acceptable right away by flicking his beak and he's not doing it anymore.