We in Missouri are going through a heat spell, 90's and humid. I have the girls out in the chicken tractor which is partially covered with tarp for shade but open enough for breeze. They have their water and crumbles, they also enjoy watermelon and tomatoes. The coop's temperature was 100 degrees! I didn't put them back into the run until 7:00 this evening and left the entrance to the coop open for better ventilation. I tried a mister to help cool the air, but they just shook their heads and moved away from it. I even set up a fan in front of the tractor for better air movement. I know, me thinks I'm not well. Does anybody use cooling measures when it's hot, beyond fresh water and shade?