As noted in another thread, the Isaan weather has suddenly changed as the cool winter season has passed into the hot as hell season.
This usually seems to happen some time in February and we've had a longer cool season than normal this year so should be thankful I guess.
I always used to lose a few chickens at this time of year with the sudden temperature increase... until I invented the chicken fan.
This is the Mk II version installed within a cage. The MK I was more basic but took out a few sparrows until I added the safety cage feature.