When I purchased my Black Copper Marans roosters and a couple of Splash Marans, along with some other girls, it was said that the Marans breed matures pretty quickly! One of my boys crows his head off and is courting the hens already. They are 15 weeks old at this time. Is it possible that any of the girls are actually mature? Should I even leave the one boy in the pen with these girls. I am concerned he may harm them somehow. He barely has spurs yet but he is grabbing their neck feathers, trying to mate and alarming them terribly. I have never had to deal with this yet as I've not had roosters before. Oi!