I know the big, fleshy combs on Buttercups aren't very hardy and are susceptible to frostbite - but what about BO combs? Stumpy has a huge, magnificent comb and I can't image it is any more hardy than a Buttercup's - is there anything I can do to help him over the winter? Does frostbite hurt? I know it'll ruin the comb. Just wondering.....