I just installed an automatic door opener to let my girls out in the morning and close them in at night. I can set it to open and close at whatever times I would like. Tonight, I had the door close an hour after sunset. I went out an hour and a half after closing time to make sure the girls were where they ought to be... nope - they were all huddled by the door, sleeping on the ramp (sigh). Obviously they weren't in when the door came down. I put them inside, and laughed at how automation obviously wasn't working out so well the first night. So - what the heck? When I've closed the door manually, they've all been inside roosting when it starts to get twilight-ish. I figured that an hour after sunset ought to do, but apparently they didn't go to bed as early tonight. When are your chickens inside and roosting? Also - when are predators the most active? Do I run a risk by delaying closing the door a little bit? (My girls go out into a large, roofed run - so they're not "out" and easy pickings, but the coop is the more secure place for them to be sleeping regardless).