One of the Khaki Campbell eggs in my incubator just pipped sometime between 5:30 and 6:30PM! I'm so excited and hope the others follow soon, but I'm curious because I've never had a successful hatch from an incubator before. How long on average does it take from the first pip for them to finish the zip around, and then push out of the shell? Around how many hours I can I be comfortable waiting before I need to start getting worried if nothing happens? I haven't seen any progress in two hours now, so they rest and takes naps between steps?