In this part of central NY, every winter we hit -20 to -30 degrees for a week or so. I have several hardy brown egg laying breeds, but some white eggs would be nice. What is the best white egg laying breed that can survive cold weather without too much comb damage? I know their production will slow or stop in the coldest weather, but I want them to survive without frostbite. For reference, all of my hens now make it through without frostbite, so drafts and humidity are under control, but large combs in that cold of weather always suffer around here (like some of my roos). Thanks!