So I fell asleep and forgot to get the girls back into their pen and coop before dark.The young SS girls and roo are very athletic and like to get up on things, even during the light of day. So tonight it should have been no surprise to find them roosted up in one of the cedar trees, along with the rest of that coop's flock. They are a bad influence! My coop area is very shaded so the actual coop is pretty dark,especially at dusk. I need something CHEAP that will kick on at dusk to encourage the girls to go inside at night. Last time I let them roost in trees, I lost several birds. Any thrifty ideas?