My chickens sleep in a converted rabbit hutch (homemade). The ceiling is high enough for them to roost, I added poles for them to perch on. They don't use them, just sleep in the nest boxes that were the rabbits sleeping quarters. Will it make them broody? How can I encourage them to roost? They are free range during the day, and always return 'home' right before dusk. It's so cute to listen to them talking to each other as they settle down for the night.