So I'm entirely new to chickens, and I'm designing our first chicken coop. Thankfully I'm not unfamiliar with pets, airflow, and respiratory issues. I know from experience when breeding horses, consideration for air circulation needs to be given at foal height since that's where they are spending their time. So I thought the same could be applied for chickens. A few things about my location that I feel may be important for coop design are: South Florida heat Winter nightime temps can freeze (not often) Hurricanes Major Breeze way runs north and south Row of perches go up the middle at an angle Vents double as light sources, measure 6in tall and 3ft long Hurricanes and winter temps can be taken care of with special straps and shutters I was thinking I would put the vent where they perch to give the better air, but then thought that would be too breezy and don't want them to get sick. So I thought I would put it near the bottom under the perches and above the litter pan so that the ammonia dissipates. But then if I did that, I felt like we should vent the top, and we're back to the original problem of it being to drafty.