I wonder if you more experienced folks can give me any ideas or avenues to explore regarding 3 losses I've had over the last 2 - 2 1/2 months. What I'm dealing with are deaths that have literally zero clues as to what caused them. The first loss was a cockerel, then about 3 weeks later, a hen, then a pullet today. Each of the 3 was found intact with no signs of disturbance. It's like they just keeled over. No broken bones were detected. None showed any signs of illness or lethargy, in fact, all were very active and displaying normal behavior. The cockerel was acting perfectly fine right up to an hour or two before he died. I wasn't present when any of them actually passed, however. The corpses didn't display any strange contortions. Legs weren't stretched at odd angles, eyes and beaks were closed. No drainage or other substances near the eyes or beaks or vent. Each of the deaths occurred in close proximity to the barn. That in itself doesn't say much because they all predominately hang around that area every day. They have auto-waterers that stay clean, plus a fast moving large clear creek to drink from. I also have 2 full brooder pens in close proximity to the grow-out pen. Both are full of chicks and I've had no losses with them at all. I would think that they would be the most susceptible to deadly diseases, poisons, pathogens, or micro-organisms if any are present. I have 100+ in my flock. Each of the deceased birds came from a separate place (GFF-cockerel, local breeder-hen, and TSC-pullet). I suspected bad feed could be a possibility, but the pullet is still on starter, so that ended that theory. My birds are completely free ranged but I do supplement their efforts with a small portion of organic, soy-free rations from a very reputable grain mill every morning. Since the pullet is still in the grow-out pen, she did not have access to anything but her rations and whatever she managed to find on the ground. There are 12 (presumably healthy) additional birds in the same grow-out pen with her. Additionally, there are no poisons, or chemicals on the property with the exception of bleach and a few other household cleaners that were left here by the previous owner. None of which could possibly have made it to the chickens. The barn and coop are constructed with non-treated lumber and cedar. The exterior is painted, but I cannot say what paint was used. The paint appears to be 5 or so years old. We are relatively new to this property, only having purchased it this past December, so I don't have personal experience on how the property was managed. I researched and asked the questions prior to purchasing it and received favorable responses as to its management. It has been organically managed for at least a decade, perhaps longer. Chickens have not been present for at least that long as well. In the last 5 years, the total livestock on the property consisted of a couple of steers raised for 4H, 2 pet goats, and a pot-bellied pig. Wildlife is incredibly diverse and abundant here. My thoughts keep going towards some sort of virus or bacteria present in the soil or perhaps carried in by the native birds. Do any of you think this is a possibility? If so, can you suggest a likely culprit? I'd like to have some tests done, if there are any, to determine if this could be the case but I don't even know what to ask for or whom to ask. It is also possible that it is just freaky coincidence. Three losses out of 100 over 2 months isn't that alarming. I just want to get on top of this if there is a chance that it isn't a coincidence.