Hi,
I have some and I can clearly tell the roosters from the hens, the roosters have the V shape comb, big waddles, and very pointy out of control feathery tops hats. The hens have smaller frames and mine have a very even and poofy top hats and no waddles at all. Mine are White Crested Black Polish and they are going on 7 months old now and laying already. Hope this helps some.