I also live here in Scottsdale. Last summer we built a new coop that includes the cheapest ac unit Lowes had. We linked it to our Alexa plug so we can turn it on from anywhere as needed. Previously our coop was located under 2 olive trees which provided shade, had to remove trees so ac has worked out tremendously and the electric cost is minimal. We have a small window and the entrance door to their roosting box as ventilation. The rest of the coop is chicken wire. Coyotes walk down our fence wall regularly as well as an occasional raccoon and so far so good.