We don't even need to open the windows for the chicks to think they belong in there! Recently, my neighbor's dog broke through the fence and slaughtered half of my flock. We've been rebuilding the flock and our two newest additions (Rhode Island Red and Americana) thik they belong inside! We we go in, the sit on the sill of the sliding glass door and wait for us to come back out. They are very attached to my wife. Follow her everywhere and jump in her lap whenever she sits down. Too funny!