My hatchery Silver Laced Wyandotte has a single comb. I have read that they should have a rose comb. Please don't laugh, because I really don't know, but do the combs change when they get older or will it always be a single comb? If it stays single does that mean my hen is a cross and not pure? It does not really matter. I just got her as a pet with some eggs on the side, but since some one pointed out the single comb I have been curious.