I have a Silkie of undetermined gender as well. Fred looks like the silkie roos I saw at the fair. Hef does NOT. Hef clearly has wattles and a comb, and not a puffy head. But although Fred has a puffy head he's never crowed. So we're waiting to see if Hef tries to climb him or fight him. No silkie eggs yet, even from HuffPuff. But she wants to be a mom / talks like a momma hen already.