I finally had to drag out an ugly old tarp and rig some shade in the run. They have some (the coop is on cinderblocks with a 10 inch clearance so they can rest under there) and I planted a fairly fast growing tree but the heat and sun are so intense, I felt bad for them and tried to shade more of the sand so that maybe they could dig in and cool off better. Old soda bottles filled with water and frozen are bobbing around in the water, too. I had to bring a few of the younger ones inside this week- nearly lost them to the heat. It's a wonder I didn't the way they were acting when I found them!
When are we supposed to get a break?! I keep shaking my head that I was so anxious for summer this year. I'm not really a 'snow' person but winter is looking pretty appealing right now...
EDIT: It's hot enough that I ALMOST let them free-range but if they got into my husband's blackberries.... well, I'd have a full freezer and an empty coop.