We have purchased from Ebay motion sensor lights for night time and attached the approx 1 foot from ground level, and they come on when there is any movement within 3 feet of the coop. They all face outwards so do not affect the girls at night. We also have a little radio in the coop playing music (classical) for them 24/7. The music seems to relax them and it also makes predators believe there is a human in the coop.... So far, no problems...