We have 4 week old (just turned 4 wks) Rhode Island Reds, production pullets. The chances of a cockerel are slim but one of the chicks has a larger, pinker comb than the rest. And maybe wattle development? The tail feathers are nothing descriptive and she wasn't cooperating with a full profile shot. It is really too early to tell but we're taking bets. ;) What do you think? The "red-head" is included for comparison...she is the same age, all photos taken today.