This is also the first year with chickens thru the winter. I read in a book that i have that you can keep it warmer in the coop by adding hay, dirt, compost, or shavings to the outside of the North side of the chicken coop. This will keep it more insulated and that there should be no cool drafts, as well. Wish you well for the winter months ahead. I was wondering does anyone know how cold, cold is for chickens. I live in Washington, for the most part winters are mild and remain at or above freezing. Thank you, Robin