Our hen went broody so we ordered some eggs. I read somewhere that eggs under a hen hatch in 20 days. It is day nineteen. I've set up a chick station for when they hatch. (we've raised chicks before but never hatched any) We are gonna raise the chicks because we want the hen to keep sitting on the duck egg. If someone could answer some questions for me it would be GREAT! (i'm mostly finding info on incubating eggs.) 1. What is all this about pipping and zipping? 2. Will she squish them? 3. Do they hatch while she is sitting on them or does the hen kind of squat?? 4. Any hints or tips. Or a step by process? Thanks!