OK I have posted a few times with out a resolution, and I will try to be complete in my story. So far I have gotten 3 batches of chickens. April, June, and November. After about 6-7 weeks, the new birds which seem otherwise healthy start dieing. There is nothing different about their poop, diet, water, or dwelling. The new birds have been isolated for a month, and seem fine until after they go into the coop. The coop was built in April. The Birds go from healthy to seeming week on day one (Still eating). They loose weight and die normally within a few day(2-4). I have wormed, Corrid, and deloused. The new birds other then sharing the same air, are separated once moved into the main coop. Of the first group of 30 I lost 4. Second group of 12, I lost 6. Third group of 4 lost one, and one is on her way out. These last two have been getting the works from an animal rehabbed as I am at a loss, and it seems she is stunned as well. I have also talked to three vets who seemed stumped. Thanks for any ideas. Any ideas are welcome.