I'm thinking this Black bird may be a rooster. Pretty sure the gray one is a hen. Was supposed to be a Hen, but really thinking now its a roo. Hard to tell on this breed for me. Beautiful bird though. Been hearing crowing in my pen and already have a Delaware rooster, but the crowing sounds like a rooster that's just learning to crow. I could be mistaken. I do have another this same breed and same age and am getting greenish eggs from it, so I thought I had two laying green eggs.