We are getting ready to build our first coop. We have the size and design figured out, thanks to all the info on this site. My question is about locking the hens up at night. Our coop will be indoor and outdoor. Do they need to be locked up at night in the inside part of the coop? We think we will probably have some predators and are building the whole coop accordingly. Does the pop door need to be closed every night? We don't want to be stuck and never get to leave town.