Might I suggest some upper-level ventilation under the eaves? What usually happens with windows-only designs is that it creates a pocket of heat above the window and below the ceiling, with this heat ammonia tends to build up there.
Yes, just one window ends up like this:
But windows on the sides at roost level end up like this in cold weather:
Which isn't a bad thing if the breeze is gentle on hot nights, but not so much fun in the winter.