I built a dirt bath that I saw mentioned on here. I placed an old tire on top of a small sheet of plywood and put play sand, fireplace ash, and diatomacious earth in it. My coop is a little over a foot off the ground, so I slid it under and enclosed the area under the coop with hardware cloth, connecting it to the run. When the snow was coming down yesterday, I actually had to chase them out from under the coop to get them back into the coop. I was afraid if I waited too long they might find themselves trapped under the coop. But this morning they were all fine and accounted for. Having the dirt bath under the coop helps a lot to protect it from the elements, so it doesn't become a mud bath. One thing I noticed about the hardware cloth around the bottom of the coop was that the snow was building up on it pretty quickly; forming a natural barrier. I think that might be why they chickens didn't want to leave the area under the coop. They were actually protected from the elements where they were and were quite comfortable. But I keep the food and water inside the coop and would rather they go back inside when the weather gets rough. I hope that helps. Denis