My 9 week old BOs are still living indoors while we finish up the coop. Last week, they were out in the back yard in the heat of the day (granted, we're in MN, so it wasn't THAT HOT, but you get the point). I had closed up the house and turned on the air. When I went to check on them, all 4 were sitting on my back step, staring longingly through the glass door - those silly pullets wanted to come back in to the AC. Princesses.
BTW, they line up on the back step every evening while we eat dinner, 7:30ish, awaiting their "ride" back to their dog crate for treats and lights out. My kids go out, pick everyone up and carry them inside. Again.... princesses. Husband: shaking his head....