Update as of this morning (day 20) I have one who pipped and is working - very slowly - on zipping and another egg with a small crack. I have the eggs in cartons to hatch. Not sure I like this method as I can't tell what eggs are moving and shaking! I am worried that my little guy isn't zipping fast enough - no real progress in the last hour or so but as I woke up and found him this way I'm not sure how long he has been working at it. Hopefully he is just resting! It might look sticky inside the egg - not real sure the chick is dark colored but is the Black Copper Maran breed - and my humidity is at 52%.