Reading this post has given me hope. I have a "mutt" rooster I got from the neighbor and he loves my porcelain D'uccles ( not sure what he is going to do if I sell them) and recently got another rooster much larger than my Barbosa (the roo). They just fluffed up at first then went to eating keeping an eye on each other. Looked outside again and the big boy had Barbosa down in a corner. I went out there and saw blood on his beak so I scooped them both up and said "That is enough I will not have this in my back yard" I know crazy. Well I put the new roo in a cage until I can figure out what to do. I am hoping that eventually they will get along. If not either I will have to sale or put in the pot the bigger roo. If I have to stay out there and spank butts I will.