Hens In Tempe AZ
We currently live in Tempe, AZ and have a flock of 3 BO although we've had a few others. We've lost two to our dogs, two to the heat, and one we gave away because she ended up being a roo. Our luck hasn't been the greatest, but we are still learning.
Our current setup is a coop/run with two sides open.
We used welded wire since the chicken wire only kept them in. Our persistent dog chewed the chicken wire. We also use a Gallagher electric fence on our coop which has deterred our dogs. Only once and they learned. They're so smart!
We also have a small misting system with 3 nozzles connected to our sprinkler system to go off every hour or so. We have a box fan that blows air into the one of the open sides of the coop. We have also started using frozen water jugs.

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Here are our ladies(Abigail, Matilda, and Millicent) free-ranging in the yard.