Heat exhaustion, heat stroke or even death are real dangers to chickens when temperatures rise. They don’t sweat like humans and are limited in their ability to cool down. Lots of shade and cool water help immensely.
The effects of heat exhaustion are cumulative, says Lisa Steele. Several days of temperatures above 80 degrees, especially with high humidity, can negatively affect your flock. She shares a homemade electrolyte recipe that can be helpful to replenish lost nutrients and minerals.
Source: Backyard Poultry, June 7, 2021. Link.