16 wk old RIR roo or pullet? 16 wk old RIR roo or pullet? a few seconds ago chickgirl66 I'm new at this. I have six 16 wk old RIR pullets that are just now getting their wattles. Combs are starting to grow a little and pinkin. I have my doubts about this one that my two year old named Black Rabbit. She holds her tail feathers up. She doesn't crow and her comb is small. Could she be a roo?