I have a Rose comb red Dorking roo and hen from Sandhill, and they are doing great this winter. I am setting some eggs from them now. Sandhill is offering Cuckoo Dorkings this year which I assume are single comb. I have ordered 10 and my plan is to just keep the hens to breed to my roo. I should get all rose combs because the rose comb is dominent, and with more crossings, I would like to create a rose comb creole Dorking!