My chickens get most of their heat protection from passive cooling (shade cloth, tarp, elevated coop). I am trying to keep them hydrated internally and externally. They really hate the hose, even though I use the finest mist I can manage. I am interested in using a mister, but I have some concerns. Will it use a lot of water? Will the water heat up in the hose? Will the chickens use it to cool down or will they run and hide? Somebody suggested putting bottles of frozen water in the run. How effective is that? Update: Tried a mister. Success!