SkyAJK
Free Ranging
Might be rubbed some mint leaf on Gladys might help? A different smell? My flock hate flies and they tried to eat them in mid air. :-(Hopefully things will settle soon. It can take a few months though, if no one wants to step up. Someone will eventually.
We get nothing like the temperatures you have to deal with in the UK but I have the water poop issue too in summer. Gladys is particularly affected. I cover hers with sand or rinse them away asap but the flies still mob them.
Gladys is black so she probably gets hot quicker than everyone else. Pru is a black mottled Pekin but doesn't seem to suffer the same. I wonder if bantams cope better with heat?
I am in Australia. It is very hot here today 33degree and it has already started, I just hope for some wind to ease down those flies.
My Pekin and Japanese bantams have black feather, they just open their mouths to breath, I dip them in water for a minute to keep them cool. I also hose their run. I trim my pekin under feather and her feather near the tail. I find them have difficult coping with the heat.