Question: I have had my younger birds outside in a brooder/run on the ground with a red light in the box for heat. They are now hanging out outside in the run all night. not sleeping out there but like being awake and scratching all night...even when it's below freezing. Is this because it's too hot in the box house or are they not on a sleep schedule because of the light?
Yes...sounds like it is too hot. You could add a lower watt bulb.