Hi all! This site has already been an extremely helpful resource after getting our chickens this past weekend. We have adopted 4 girls, 2 buff Opringtons and two black and whites with flat, cushion combs (not sure of the breed), all about 2-3 years old. There are plans to build a bigger, better coop since the coop they came with is less than desirable but it may have to make it through the winter, which is supposed to be colder than normal here in TN. Right now, the highs are lower 40s and dipping into the 20s at night. I’m not planning on using a heat source, but am concerned about ventilation. The coop itself is a 4 X 4 X 4 square, raised up about a foot off the ground. There is a large window which is closed all the time (takes up most of the back side) and the coop door, which doesn’t currently have a door (we are making one). The top of the coop has some gaps between the walls and roof, but no real ventilation. I’m afraid any holes we cut in the top will be too close to the chickens and cause drafts instead of ventilation. Any solutions for working with what we have for the moment? I can post pictures if needed, thanks in advance!