We have three RIR all purchased at the same time, from the same feed store. We know we have a roo, and a hen, but one we are unsure about. They are about 15-16 weeks old. Our definite roo. Our definite hen. The chicken in question. The same feathering as the hen, but the comb and wattles throw us off as they are much larger and redder than the other hen, but not quite as big as the roo. She/he doesn't crow, but has the same growly-ness as the roo and is much, much louder than the other hens. Thanks everyone!