We have 3 EEs and 3 Barred Rocks and this will be their first summer in the HOT Southern California high desert. We get 100+ weather over the summer regularly. We've covered the coop issue...they have two. One is a typical solid wood coop (great for our very cold winters) and the other has a fine wire mesh floor that allows plenty of air in to keep it cool. Currently they lay in the "cool" coop and sleep in the warm coop. This works great for weeks like this with 90+ during the day and low 50s at night. The "warm" coop is also covered with a corrugated roof for shade and protection from rain/snow. Their run also has shade fabric where the hard roof is not, but they spend most of their time in our garden or backyard which neither are covered. What do we do with the heat coming? We've thought about hooking up misters to the drip system and hooking along the fence of their run. Our idea is that it give cook water several times a day and provides wet dirt to "play" in. Will this be enough? They're water is already hooked up to drip too.