Hi all. Like may subject mentions, I am new to this forum but have been raising hens for several years. Started out buying some Cornish Rock straight runs for my son's science project. My husband got over zealous on the quantity and bought too many. We slaughtered many, (put them into the freezer) and lost many, because they could not deal with our triple digit heat. Next we tried Rhode Island Reds, Silver Wyandottes, Buff Orphington's, etc. but none worked out due to the heat. After fifteen different varieties, finally, I think if you want to raise chickens in the desert southwest, where the temps get to triple digits, I recommend the Buff Minorca (leghorn) the Anconas( leghorns) and the Single Breasted Rose Leghorn. See my other comments for what you need to keep them alive in 100+ temps.