We do put a tub out for them filled with water (change it daily). Our bared rock (Flo) has learned to stand in it on hot days. She does this on a regular basis now. I even catch her nodding off in the tub of water as she gets relaxed in there. We call it her spa.
I did read someone who suggested keeping a pail of cool (not cold) water handy. If they are panting and their waddles are pink instead of red, or you think they are over heating, just pick them up and hold them in the cool water. I do this fairly regularly now as we are having days over 100. They resist until they feel the cool water and then they just seem to calm down. When they get out, they are not longer panting or holding their wings out.
I did read someone who suggested keeping a pail of cool (not cold) water handy. If they are panting and their waddles are pink instead of red, or you think they are over heating, just pick them up and hold them in the cool water. I do this fairly regularly now as we are having days over 100. They resist until they feel the cool water and then they just seem to calm down. When they get out, they are not longer panting or holding their wings out.