My flock is about 7 weeks old and currently living in their coop. The coop is very well ventilated, raised off the ground about 2 feet and under apple trees (shade all day). It is currently about 90 degrees in the coop and the humidity is high'ish (54%). They are panting, as I would expect. I've hung a box fan outside the window and have it on high. They are hanging out in front of it doing their best chicken-marilyn-monroe-skirt-blowing impressions. I also just gave them a 1/2 watermelon, and of course they have plenty of fresh water. Here are my questions: How much of this is really necessary? I just cannot imagine chicken keepers two generations ago doing this for their chicks. I'm in the midwest (outside temperatures are currently 92, heat index 99) and we're expecting hotter temps next week. However, I have to believe that people successfully raise chickens in the deep south where it's even hotter and more humid. What do those in the deep south do to keep their flock healthy in the heat? Anything? Their run is not done (so they cannot be outside), but they have lots of room in the coop and plenty of air flow (especially with the box fan). I have 2 Plymouth Rocks, 2 Rhode Islands, 1 Buff Orpington and 1 Americauna and 1 Black Sexlink.