Since it has gotten warmer here, in the 80's well into the evening, my 5 week olds don't want to stay in their coop. They were going in and getting on their baby roost every night like good girls. Now they hang out and roost on the "porch" of their coop or even on top of the coop hatch door. Their pen is screened on all sides and across the top so I'm not too worried about predators here in the city. Should I be closing the door to the coop every night?