I live in North Texas so cold weather isn't a huge concern most of the time, however, the next few days and going into Jan/Feb we will be looking at possible freezing temps. I want to prevent drafts but also leave plenty of ventilation and I need help in deciding what to cover and what to leave open. The side vents at the top face north/south (the side windows have already been covered in plastic and shutters closed) and the front windows face the west. Roosts are on the far right end of the coop and the side vents/front windows are above their heads when they lay down. Do I cover the side vents to prevent the north winds from blowing through the coop and leave the front windows open for ventilation or vice versa? Sorry for long post but any suggestions are appreciated!