With due respect WC, temperature might be a factor in Wisconsin. I was talking with a guy from Minnesota who said his birds could not take their weather. I would suggest insulating the coup, or at least having a heat lamp, maybe with a thermostat.
I probably pamper my birds too much. How cold does it get in Georgia? Does anyone have any history of how much cold grey jungle fowl can take (or any nightmare stores of them freezing)? I would be real interested in knowing their tolerance for cold. I may turn down the thermostat in my coup.