chickluvinfreak
Songster
Our RIR's didn't do well in the heat here - we have humidity instead of a dry heat - it's really the humidity that does them in.
My friend lost all her RIR's roo's to the heat too this year. You'll want smaller birds that do better in the humidity unless you want to have a swamp cooler, or AC in the chicken house for them.
Our heat indexes in a lot of area's of texas, especially closer to the coast, will hit 140+ even in the shade.
I wasn't sure if Texas got humid or not and I don't know what breeds do well in humidity. Do any chickens? The dryness is one of the only good things about arizona. And it gets 140 degrees in Texas!? I don't know how you or the chickens can live in that. I lost almost my whole flock last year when it was 120 degrees. It was before I has installed misters. This year has gone by much better with misters and constant water checks.