The temperature is supposed to hit 102* today and it is 100* already. My chickens are panting too but I am the most concerned over an eight year old, overweight Wyandotte hen. She was in a lot of distress so I brought her inside the house. Just like elderly people and the very young. If it appears to be a matter of life or death and you have the means to do it, bring them inside the house or in the cellar. It probably is impractical for most but it may be an option.