My chicks have been in there coop for 2 days now. I have roosts in the coop but they don't seem to sleep on them. I put them up on there a couple times and they stayed there for 10 minutes or so. Then others would jump on. But they don't stay on them for very long and they don't sleep on them over night. How can I teach them to roost? They are only a month old. Should I just keep putting them on the roosts every night or let them figure it out themselves?