Question, This is the fist time I have raised sumatras. I used to raise many different breeds over the last thirty years. I have a pair of sumatras that are 3 months old, One I know as a pullet. It has a long tail already. The other one I think is a cockerel. Its tail has not developed yet. Does the females tail develop before the males in this breed. I have 8 bantam sumatras too that are 2 month old and would like help in sexing these also. How old do they have to be before you can sex them?