So far so good! This morning they were hesitant to come down into the run, though. Understandably as it was -5°F. Yesterday morning as rough too with the wind. Gave them some warm Oatmeal as a treat, they were stoked. I do want to inspect their combs for any frostbite today, just to be sure.
I did get snow blowing through the ridge vent during last Friday's storm, right into their coop. Cleaned out the snos after and they were fine. If we get another windy event I'll make sure modification to keep the snow out during the storm at least.