Well, I have given up on my chickens suddenly liking the snow... They hate it! My coop is too small for them to be cooped up all winter. Here in upstate NY that could be until May! So, I am going to make a lean to sun room attached to the coop. My idea is to use metal roofing that I have left over, and make sides out of old windows (which were being saved for a greenhouse). I will have to have a door, so I can get in and lock up the coop at night. This will effectively add on a 10x10 of protected, unsnowed on ground. They will still have the option of free ranging, in case they feel brave enough to touch the snow. I have read a few posts of people who have similar areas. See any issues I should deal with, as I go? Thanks again for the all the great info!