Hello! We are new to BYC, and to chickens in general. We have 8 birds, all 4.5 months old. Four breeds, 2 of each. We are having trouble telling the gender of some of the birds. We have tried to tell by feathers, waddles & combs, but we were hoping to confirm by crowing. We have one very large, very male Aracauna who crows loudly all the time. We have 2 more of other breeds (a Blue Andalusian and a Golden-Laced Wyandotte) that we thought were boys, but now we are not so sure! WE never hear them crow - could the Aracauna just be over-powering them? Any ideas?