I just found my 3rd feet-in-the-air, lying-on-its-back, dead Ranger. I think this is called "flip" and is a heart related cause of death, right? I haven't read of other people experiencing the same, but I'm thinking these Rangers might not be quite as sustainable as hoped for. I'm not really discouraged, I knew going in that these were fast growing hybrids and some problems were to be expected. But, this has reinforced the idea that perhaps mixing with a standard breed might be a good thing. Also, waiting until they are a bit older to breed to eliminate those that are susceptible to flip (assuming it is genetic). BTW, the pullet I found today was just over 11 pounds and just under 22 weeks.