Guys, help me out. I've had five "cockerels" in a pen. But this one baffles me. Four of them always hang out together while this one is usually off by itself. The four all now have very prominent sickle feathers; this one ... does not. I had decided it was a cockerel based on it having saddle feathers like the others, but now ... I'm not sure. Please help me. Is this thing a pullet? These birds are just past the four-month mark. Thanks!