I have had 3 chicks die over the span of about four days. One day they are running around perfectly fine, eating and drinking, and then the next day they are dying! I don't know what is going on! I found a pattern that has been occurring right before they pass though, they lower their wings, stand there staring off into the distance while the others are playing, sleep excessively, and they all do kind of a cough/ sneeze thing, and then they do a bunch of yawns in a row and continue that until they pass. I don't know what to do anymore. I've tried given them every electrolyte recipe in the book, but nothing helps. Can some one please give me some ideas on what may be wrong?!