My pullets are about 13 weeks old. I got them when they were 6 weeks old from a reputable breeder who said they were all female. I have two Ameracauna's, 2 RIR's, a Golden Comet and a Barred Rock. Recently, the gray Ameracauna has started crowing in the morning! An immature, but unmistakeable loud crow. This has always been the bossy chicken in the flock and has always been bigger than the rest. I have read that a dominant hen will sometimes crow in the absence of a rooster, but the size of this chicken along with the crowing has me questioning the sex. I live in a neighborhood and I can't have a loud rooster around. Will you guys mind looking at these pictures I just took and tell me what you think? The questionable chicken is the gray/brown Ameracauna.