When I first moved to AZ (from CA) it was over the July 4th weekend (94) and I did not have air conditioning in my car. About when we hit Yuma, my poor cat was in the back panting like that. Luckily, my dad had air conditioning in his truck and took her for the rest of the journey.
Here in Kalifornia’s Coachella Valley, the quail and roadrunners start panting when it gets to around 115....funny thing is, though, they never head for water if the sprinkler bubblers go off while they’re grazing in the yard.