I have had three fawns die this year that seemed completely healthy. The day before they died they seemed to not feel well. Stand-offish, droopy ears and eyes, hair on end. I necropsied each of these my self as I do with all of my dead deer. Everything seems normal except that the rumen contains an excessive amount of sand. My first thought was that the fawns were not able to reach the feed, but I have since lowered all of the feeders, so that I know that is not the case. I also have free choice minerals in every pen, as well as alfalfa hay. Just wondering if anyone has seen this before. Thanks for any suggestions or advice.