Hi guys, I live in a suburban area with my lovely SLW pullets. Every night after sundown, I usher my chickens into the coop (if they already haven't gone in themselves). I don't have a chicken run because they have free-range of my large backyard and of their pin (large enough to fit in a raised garden bed with lots of space to walk around that). Anyways, should I keep the door to the coop open at night? There is a gang of stray cats in my neighborhood and a small family of raccoons and possums... it makes me nervous to keep it open. Any thoughts?