At the moment we are having a really bad snow storm, the wind is crazy. I checked the coop and about an inch of snow has somehow found it's way inside, right in the corners. I added more hay and put Vaseline on their combs to prevent frostbite. I can't see what else I can do, they have been fine so far this very cold winter. This is the first time any amount of snow has gotten into the coop. But yet I'm still worried that they will freeze. Are they resistant enough in this weather. What else can I do?