I have a 6 week old silver laced bantam Cochin that we've been sure was a roo since he was about 3-4 weeks old. We brooded 28 chicks of various breeds with 21 of them going to new homes, and knew that we had a good number of cockerels in the mix. Yesterday, the last of the ones going to other homes left, and now I just have the 7 I purchased to add to my flock. This morning he crowed for the first time, and it made me wonder if that could be an indicator that the remainder of the chicks I have are pullets, and that he's begun crowing now that he is the only cockerel in the bunch? Or if it is just that he has less competition since the other larger cockerels have gone? I have three that were sexed and are supposed to be pullets (Buff Brahma, and two Russian Orloffs), and the other 4 were straight run (Bantam Cochin (roo), Buff Laced Polish, and two Silkies). I'm fairly certain the three that were supposed to be pullets are, and I believe the Polish is as well; I'm not sure on the Silkies since I'm new to them and know they are hard to sex. I know that they can begin crowing pretty young, but this is the first time I've had a cockerel crow this early, and I'm mostly just curious if anyone has noticed the same thing or has any experience with this. 
Picture of Merle for fun.
Picture of Merle for fun.
