It has been windy and well below freezing at my house the past week or so, and I've noticed already that my two rosters are getting bad frostbite on their combs. I tried more ventilation and less, neither seemed to help, I'm trying even less tonight, it has pretty good air flow I think and they have plenty of space to sleep and stay warm or cooler if they so chose. Tips?? Help?? I'll post pictures of their combs and the ventilation tomorrow.