Do Chickens Sweat to Cool Down? - Backyard PoultryAdd to Favorites By Tiffany Towne, Nutrena® Poultry Expert - Some people love a summer heat wave, or for that matter, sweating it out in a sauna. Not backyard chickens. For our feathered friends, steamy summer days can mean trouble. But the right care can help your girls keep their cool and stay productive throughout the season.