I put out a mister 2 days ago. It's been hot and I thought they might like it. The first day they wouldn't even go to that side of the yard. Yesterday they went to that side but nowhere near it. I'm sure today they will go look at it closer. Tomorrow they will probably go give it a peck. Lol.
I have 2 of the "cobra misters" like home depot sells and they don't use them to get "wet" but due like to scratch the moist ground and lay in the shade as they nap lol. I built them a 25 foot mister close to the coop to help keep it cool where they hang out under it.