I have been worried about losing ours to the heat too. Plus we are caring for my aunts flock, and from looking at them, they are pretty old.
Every morning we have been using a spray nozzle on mist to wet down the coops, runs and chickens. We have deer netting over the tops of the runs so I run the hose while it is spraying over the netting so it gets everything and everyone while not spooking them. By misting in the morning it has time to dry before night.
Then in the heat of the day we put out 2 liters with water that has frozen solid in their most common resting areas. Finally, I put the 16 oz bottled water bottles that have frozen inside their waterers, it melts slower and keeps their water cool.
Every morning we have been using a spray nozzle on mist to wet down the coops, runs and chickens. We have deer netting over the tops of the runs so I run the hose while it is spraying over the netting so it gets everything and everyone while not spooking them. By misting in the morning it has time to dry before night.
Then in the heat of the day we put out 2 liters with water that has frozen solid in their most common resting areas. Finally, I put the 16 oz bottled water bottles that have frozen inside their waterers, it melts slower and keeps their water cool.