I have had chicks from TSC, didn't lose not even one. I order day old babies to be mailed. They were in transit only 1 day. 1 dead on arrival, 1 died a day later, then another a day later ( today ). am I doing something wrong? They are on Chick crumbles (and eating well from appearances) Drinking water with electrolyte added. Heating bulb available for them to warm up, they have room to move away as well. Is there anything else I need to do?