I am currently hatching 20 BLRW. About 9 have pipped the shell but don't seem to be doing anything. How long should or can it take for a chick to emerge after pipping starts. At what point should I worry about them dying in the shell? Can they die after pipping? I am really trying to leave them alone. I have 4 chicks so far. My husband says they look like golf balls with legs.