Three hens in single digit temps

[SamLockwood]

Back before I covered my run I had three old hens (one was over a decade old), that would never sleep at night in coops. They even stayed out when we hit single-digits a couple years ago. I rigged some plastic on the one side of the run that was exposed to wind, and that night they got up on their roosting bar, sat on their feet, and tucked their heads under a wing. It looked like a trio of feathered footballs resting on a shelf.

They emerged fine the next morning, I think your birds will be OK in that setup.