I posted on general discussion and a response sent me to this forum. Very interesting info that I'm learning re: IBs Just bought three seven-month old Iowa Blues. Asked for hens only since we already have a rooster (Copper Maran beauty). Noticed, however, that two of the birds have no comb to speak of while one of them has a full comb and wattle (didn't check the ear). Does anyone know if the fully-developed comb is a rooster? We need to know as soon as possible since we cannot have another rooster and agreed to pay for three hens. I'd love to be able to help continue this breed, but we don't have the set up for it. If there is any other way to ID the chicken with the full comb to determine sex, please let me know. Thank you.