My non-dominant roo knows that Big Guy is the boss, but he will still try to get on a hen every chance he gets. Big Guy will come running if he catches him. But they both do it, when they see the other guy on one of the girls. I actually noticed a red, bare patch at the base of Big Guy's tail Saturday, but I can't catch him. When DH grabbed Punkin though, we felt just how sharp his spurs are now, and I think he is catching Big Guy on the saddle, when he runs him off a hen. I'm torn because I don't want them to hurt each other, but they normally work really well together, keeping the hens rounded up and such. With them free-ranging on their own, they roam probably 4-5 acres throughout the day, and a hen or two will linger sometimes when the group moves, but Punkin will usually stay with them, so I hate to get rid of one of the boys. :/