We've got a problem. The "run" is a 10X10 ft dog run with a tarp roof. 3 RIR's have a small "habitat" chicken house on one side of the run and my 3 games have a similar habitat on the other side. Both haver nice roosts, pine shavings and two good nesting boxes each. All of the girls who lay do so in the RIR habitat boxes. The reds used to go to sleep inside their coop without being "led" inside. The games joined the family and it was too close of quartrs for them all. So I bought another similar coop for them. Trouble is, all 6 of them want to roost on the roofs - not go inside except to lay eggs. So I have to go and play "god" at night swooping down and placing them one by one into their respective coops. Will turning on a low wattage lightbulb inside their coops urge them to return to the (real) roosts at night?