Sorry to say, it's the air temperature that gets to -40 at times... It doesn't stay there long before it's back up to 0... HOWEVER, my coop will be wind proof and insulated, because if the wind gets to blowing hard enough in these cold snaps, the wind chill can reach -60F- -90F... I plan on...
Which breed weathers the cold in the winter best, RIR's or BR's? I live in Montana, where temperatures can drop to -40F... I plan on insulating my coop and putting water heaters in the water to keep it from freezing, but I do not plan on heating the whole coop. Also, we only plan on having...