I am just about to complete my plans for our new coop and will post the drawings soon. But I've been reading a lot about ventilation and had a couple questions. I plan to have the chicken area be 6 X 12 X 8 feet high. I will have a door to the adjoining "people" room which will be a storm door. I plan on having two windows (1 facing east, 1 facing south) in the chicken area. The only other opening will be the automatic chicken door. Should I plan to have some sort of ventilation up near the ceiling? Should it be something I can close in cold weather? Or will the two windows be enough. I plan on double hung windows which will be off the floor about 3 feet and extend up to about 1 foot from the ceiling. Thanks.