Please help! We have been losing our chickens one by one almost weekly. We lost all 3 Buff Orpingtons (from a local hatchery and vaccinated), 2 Cochins (bought from local breeder and not vaccinated) and now today...a Japanese Bantam pullet. They just become lethargic. As soon as we notice, we have separated them, given them electrolytes and vitamin B. Unfortunately by the time they show symptoms, it seems to be too late. We are keeping their food and waterers clean. Their coop is in a large fenced area with our 4 pygmy goats. They seem to cohabitate extremely well. Could that be a problem? I am just not sure what else we can do. We keep their entire area clean. The Buff Orpingtons just died out of no where. Within a few days, we discovered each one of them lying dead in the yard. No prior symptoms and they were all about 20 weeks. The cochins became lethargic and died within 24 hours. The little bantam pullet just became very ill today. My daughter just went to put them in for the night and she was just lying there and allowed her to scoop her right up. She won't even balance her weight or open her eyes. We just separated her but I feel like we are going to continue this cycle. I thought chickens lived for years??? Since mid summer, we have lost 1 silkie hen, 3 buff orpingtons pullets (20 weeks), 2 cochin hens (1 yr old), 3 japanese bantams pullets (20 weeks) and 1 new hampshire red pullet. What are we missing here???