We have a cubby as a chookhouse and hubby put wire mesh but left the sliding clear plastic windows so we could close as needed for rainy or really cold windy days.
I know they say chooks can sleep out in the open but I tend to think mine can't because they are too molly coddled now
but I probably underestimate them! Ours has three windows and hubby made a mesh covered window on the back wall for flow through of air in hot weather. (he said he would leave me if I tried to get him to install air con so I am just considering a fan for next summer
The verandah was going to be for sitting and chilling but sadly it has proved too small for adults *sigh* so we made do with benches nearby to observe.
Hubby also made a cover for the skylight to block out sun on hot days (just like the ones he made for his greenhouses using left over materials)
It is amazingly solid and robust and all cracks where vermin might get in have been covered with chook wire.
I will get photos this weekend if I can remember - he did an AMAZING job modifying it!