Be careful cranking the humidity after the pip. If the temp is a little high and the humidity gets cranked, you can drown the chick in the egg. The humidity needs to be raised to about 60% on day 18 at lockdown. If they don't hatch on their own, there is more than likely something wrong with the chick or the bator was opend during a hatch and made the membrane so harg the chick can't brake through. I had a guinea egg fully develope once and after it didn't hatch, I cracked and found a dead but fully developed 1 headed, 2 body keet. Nature will take care of itself as long as we don't do something dumb to hurt their chances.
