I am currently flockless. Lost the whole flock one and two at a time in spite of my best efforts. I think it might have been due to the desert heat here in Tonopah, Arizona. I had 15 total hens to start. A mix of Buff Orphingtons, Barred Rocks and Arachonas. I have two chicken arks with shelter at one end permanently attached to a 20x20 foot run. They were thriving, averaging around a dozen eggs per day. But then summer came and when we hit the 100+ degree days of June/July/Aug. Started losing one or two a day. I added a tarp to half the run for more shade. Added a fine water mister for cooling which slowed the loss but still was finding one or two a week dead. I also noticed they were bunching around the feeder/water in spite of the heat. I would really welcome some ideas for the up coming summer to prepare the arks/run before getting some more hens. Thanks