Hi all- I'm new to chickens and got 4 brand new chicks about 3 1/2 weeks ago. 2 barred rocks, 1 RIR and 1 BO. I initially though one of the BR may be a rooster because it was a GIANT compared to the others. I think they were all the same age when I got them. (1 or 2 days old). Now, based on coloring, I think the little BR may be a rooster. It is by far the littlest of all the chicks. BUT, it seems to be a little lighter than the other BR and has a large white smear on the head, as where the larger BR's white has turned to stripes already. Any ideas? We can't have a rooster, so wanna know sooner than later! thanks.