I'm fairly certain one of my Blk star pullets is a roo.Maybe a second one, too! At 20 days, "he" has tiny tiny tail feathers; the RIR and other Blk Star are 1 1/4" already; the wings have just one Layer of feathers, RIR wings almost fully feathered. THis "boy" had a white spot about the size of a dime on "his" head ar 1 day old and it's mostly still there. "He" is noticeably smaller than the others. On "his" wings , high up on the back, "his" feathers are worn off and bare. "He" is the most aggressive, pushing napping girls off the perches and my DH saw "him" kicking at the others. His feathering is not solid black but barred with dark gray. There is one other chick that is very similar. Oh, in general the other black stars are a little smaller and less feathered out than the RIR and speckled sussex and SLW. Is he really a boy? I purchased the black star pullets to increase the % of pullets knowing the art and science of sexing is on average 90% accurate; what recourse do I have with the hatchery? Any suggestions?