I started with 4 black copper Marans, 1 white maran, 1golden maran,1 silver coco maran that turned out to be a roo and he is now my favorite he gets up in my lap when I'm sitting in the pen or run and let's me pet him, however I seem to be the only one he comes to but he does not get aggressive with anyone else. I had trouble with the golden maran eating eggs, fixed that with a game cam and ceramic egg. And the white one it's first year was egg bound but has never had a problem since. They mingle well with the astrolops and barred rocks and new hampshires as well who by the way rule the roost.