it's probably close to 10 - 11 weeks old.... (got it the very last of march) and see, I have another bantam cochin that I know is a rooster, just by how it acts, but this one seems a lot more poofy, and seems to sit lower to the ground than the roo.... I had no doubt in my mind that it was a pullet.... but she runs around and challenges the roosters, and is quite bossy.... and I don't know for certain, but I think she tried crowing this morning (I wasn't looking directly at her, and when I turned, the other bantam picked a fight with her)... sooo... yeah, I guess I'm just going to have to watch a bit closer...