Well, I lost my battle. He warmed up and seemed to liven up a bit, but as the day wore on he seemed to be going down hill. I tried to push fluids, but with no success. Then came the death rattle, pneumonia. I had heard it in humans, so I knew what it was and the ultimate outcome, so I saved him the suffering. I had him inside in an older brooder box with a heat lamp. I know it wasn't due to rapid warming, as I lost the two before him to rapid warming heart attacks. He was, for the better part, generating his own heat: although he wasn't greatly warm. Tomorrow, I am adding DE to their diet and ACV to the water. I am so much at a loss for reasons. Like I said earlier, when I initially picked him up to get him to move, I was amaized by the lack of weight. I know he has been eating, but to what volume I can not say. I know his crop had food still in it this morning. Plus, for him, I found him segregated from the rest of the flock. There were two heat lamps running in the coop, one basically shining in the area of where I found him. My major question is, if I did a necropsy, would I see parasites/worms in the intestines by the naked eye? I just hate it when it doesnt add up for me. I am taking this very personally. I keep second guessing, did I miss a sign or symptom? Saddest part, he was a replacement bird for a breeding program I was doing: wasnt a cheap bird.