We had a one week old chick. It was alone since it was the only one that hatched. It seemed to be thriving, nothing appeared to be wrong. It was eating and drinking. It was on chicken starter and we gave it very small amounts of tomato and yogurt. When we left for work this morning it was fine, and when we got home this afternoon it had died. We looked it over and could see it had a swollen place on its right side right above its wing. it looked like there was fluid under the skin. I have included pictures taken after the fact. Any ideas as to what happened?



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