Hens go broody when you don’t want them to… and won’t go broody when you do. 
My coop is going in the shade of deciduous trees and I'm in TN. I put a window on the north and south, directly opposite each other. In the winter, this lets in the partial sun for warmth and in the summer, it's shaded. I can get a draft through the coop at roost level by leaving both windows open in hot weather I happened to have a pair of 24" square shed windows laying around so I'm using those.
I saw a number of nice windows available for very reasonable prices at the Habitat Restore. That's a great place to check if you have one near you!
OH, and you can make a window that opens like a flap by simply putting a plexiglass panel (available at places like Home Depot) on hinges with a basic little frame that covers the hole so it won't be drafty when it's closed. If my setup needs additional summer ventilation, I plan to add a couple of these panel windows since it's easy enough to do as an add-on. My husband is convinced two windows are plenty but I told him that I know where the Sawzall lives and I'm not afraid to use it if that coop is the least bit hotter than the surrounding air in summer!
I saw a number of nice windows available for very reasonable prices at the Habitat Restore. That's a great place to check if you have one near you!
OH, and you can make a window that opens like a flap by simply putting a plexiglass panel (available at places like Home Depot) on hinges with a basic little frame that covers the hole so it won't be drafty when it's closed. If my setup needs additional summer ventilation, I plan to add a couple of these panel windows since it's easy enough to do as an add-on. My husband is convinced two windows are plenty but I told him that I know where the Sawzall lives and I'm not afraid to use it if that coop is the least bit hotter than the surrounding air in summer!
