I'm very confused right now. I bred a single comb cock to 5 single comb hens. Have 32 chicks of varying ages. Tonight I noticed 9 of them had what appears to be varying levels of a partial pea comb. How could this happen? Is there some sort of modifier one of the hens might lack that was suppressing this? It is 8 males and 1 female so far. Some are still too young to tell for sure. Any other ideas? These are SOP breeder birds of the same breed, from two different breeders.