I'm curious to see what "average" chick mortality rate is. I have 12 hatching eggs due Friday and another 15 due 2 weeks later. I think 3 of the last 15 are double yolkers. Assuming a 50% hatch rate, we should have around 14 chicks. Now I'm trying to figure out what average loss of hatch chicks seems to be. I'd prefer to have 0 losses, but I realize it isn't always sunshine and rainbows, so want to prepare myself. Any insight?