OK anyone want to share thoughts on chicken tractors and cold Connecticut winters? There's a '2 story barn' design at this site http://www.buildingachickencoop.com/?hop=pkbears that I really like -it doesn't have the sloped sides many of the A-frame arks have which produce less-effective space at the corners of the triangles. Sorry I haven't figued out how to post graphics yet (not sure if I have enough posts to allow that). My concern though is I read that having a coup with open space beneath it may be tool cold (without the insulating benefits of being on the ground). Thoughts? I really like the tractor in theory - not just for grazing, but so I can move the coop closer to the house during winter weather - but I also don't want frozen birds!