Ok my question was...would it be a good idea to bring them back into the brooder ....anyone?
Good answer here:
Hot very high 90's here lately. I filled milk type water bottles about half way with water, laid them down in the freezer overnight, and next day, about the time heat got to its worst, i scattered them around the run but only under the covered shade part. They could snuggle up to them to cool off. Also i put a kitty litter box, clean of course, in the run with water for wading and, of course, drinking. I give them kitchen scraps and wrinkled old veggies and fruits that I keep in the fridge for a cooling treat.Taking the birds in and out of the that will only make them hotter, the best thing to do is provide shade and water and cool dirt to dust bathe and relax in and a fan.They should do just fine in the heat.
Also your birds are New Hampshire reds not Rhode Island reds.