Thank you @aart and thecatumbrella! I do have soffit vents above the front and back windows, but not above the window on the run side.
I added my location information to that location field, thanks.
Aart, I was trying to go for deep litter method like Carolina Coops had...
Any suggestions at what temperature we should close some or all of our coop windows and coop door? The rafter vents above the windows will always stay open unless we have blowing snow or rain. We have 4 black Australorps(4 months old) and live in Nebraska. Trying do the deep litter method (TBD...