A couple weeks ago I got a rooster and a hen, both barred rocks. I let them run the yard during the day with my 5 RIR's. At night the Reds go roost in the coop I built them and the BR's go to the makeshift box I made for them when they first arrived. They are not mixing togather very well. The newer birds keep their distance, and the rooster is a real wimp. He had a stand off with the domanate female and lost, even though they are about the same size. He crows in the mornings so Im thinking he is of age. How can I make him be the boss of the flock?