Hello everyone. We have been in the backyard chicken game for a while now. Recently we acquired a bunch of silkie chicks from a coworker. 7 total. We have 3 pure silkie chicks and 4 crosses. 2 other rosters on the farm were a RIR and some Big marsh rooster. I really want this white one to be a pullet but my gut is telling me roo. It has a pretty fat comb on its head and fights with a known cockrel every once and a while but backs down quick. They are about 4 months old. I will get some better pictures but is there any sure fire way to figure this out?