Last night I had just put in more feed and fresh water for the 37 chicks (11 days old) that I have in a good size poly water tank. My DD had the misfortune of going down 30 min. later to find a dead chick. It was very warm. No life what so ever. I could not find any pecking or bleeding. The two things I saw was that the vent area was puckered a little bit. Not much. It was of normal color comparing to the other chicks and they are becoming 'flighty' now and I wondered if somehow it broke its neck.?? It's head was really wobbley. I was really worried when checking on the rest of them this morning not knowing if the dead chick had a disease or virus. The rest seem to be fine. Does an injury happen like that (broken neck) in brooders if they are all scrambling on top of each other?