So sad to see chicks appear to be gasping. Temps now at 31C/87F and they are now getting the West sun. I know we see this annually, but I for one wish they had an AC. The forecast for tonight partly cloudy. 30 percent chance of showers late this evening and overnight with risk of a thunderstorm. Low 15. 
The chicks are fine - they aren't gasping, they are panting - other than their feet, that is the only place that birds have direct skin to air contact. That's also why they lie belly down on the gravel when it is in the shade, it is cooler and the pebbles can get through their feathers next to their skin.
As for A/C at the nestbox, that would not be a good thing. Part of what makes AC work is the passage of air over water that is constantly being cooled - in a space like a nestbox in hot weather there would be a build up of moisture/condensation and that would potentiall make a nestbox full of chick poop and dead birdie parts a soup for all sorts of pathogens which would not be good for the birds. So the chicks follow the shade around the nestbox and nap - they are much more active early in the morning and evening/night when it is cooler.
And storms don't seem to phase peregrines - Hurricane in Brandon got her name because she and her siblings sat on the edge of the Radisson nestbox and watched the t-storms that birthed the Eli tornado. And at this age, they like to dance in the rain - if it does rain this evening/tonight and if there is enough light I'll see if I can get a screen capture of them dance if they do.
