First off - thank you for all the wonderful information, I have received this past year. Last year we converted my daugthers playhouse to our coop. The coop has two windows that open. The lower level is about 4ft from the ground. The second window is in the loft area. (Which is used only for storage.) I do open both windows and used chicken wire in the inside to keep out pest. After reading some of these posts I wonder is that is going to keep out a racoon? Both of the windows are the kind that crank outward. We have always thought coyotes were our biggest fear...maybe not.