We have 12 hens (black austrolorps,barred rocks, nh reds, Delawares, buff orps) and 1 roo (bl austrolorp). All were hatched this past March, within a week of each other. I have noticed that only one of the hens are interested, when he wants to mate. The rest run off when he dances. Needless to say, the one is getting pretty beat up by roo. Any advice on how to change the hens behavior? Note that I want to keep the rooster, due to the fact he kicks hawk butt!