Ok, we are finishing up our coop and need some ventilation advice from you experts. It's 8'x7' in size. Front of the coop is 7' high and the roof slopes down to 6' in the back. We have two windows in there, they are good-sized. In the summer we also have a screen door (covered in hardware cloth) and this will only be used during the day. On the roof is one of those full-sized spinning vents- kind of looks like a crown. I think the opening to that is about 10-12". At the top of the coop walls we have 1 cutout in the front and 1 also in back, right in between the studs. I'm guessing those cut outs are about 3" high by maybe 12" wide. So the winter ventilation would only really consist of the top spinning vents and the front and back cutouts at the top of the walls where the roof meets them. I'm in WY. We have cold winters with snow, and very low humidity. So considering our humidity is very low, do you still think we need to add more ventilation? We have 6 six-week old chicks and would like to get a few more in the future. One of the options that we have are to add more cutouts (also covered with hardware cloth) along with the front and back ones. We can have a bit of wind in the winter, and I just worry about too many drafts for the chickens, but then again none of my vents that I will use in the winter are down near their roosting areas. Will the two vents we have at the top of the walls, along with the spinning roof vent be enough for our dry winters? Or would you all recommend opening up a few more of those vents in between the wall studs up top of the wall? I really hope this makes sense, and if you need more clarification, let me know. Thanks in advance!