ETA: Two chicks are fully hatched and two more were actively unzipping when I left today at 6pm. Fingers crossed for happy living chicks dry and ready for the brooder tomorrow morning.
So this is my third year hatching eggs with my class (my first year with my new, beautiful, fancy, scientific, calibrated incubator). My experience has been that Day 21 is pretty boring - a little pipping, maybe a single chick at the tail end of the day, while Day 22 is hatch-o-riffic.
Today was day 21. A couple of eggs are maybe pipped.
I am really crossing my fingers for big action tomorrow, since it would be very hard to get another batch of silkie eggs hatched before the end of the year.
...This would be the year that I had a big countdown chart and everything. I'm worried, and going to school early to see if anything has happened or if I can get eggs to set before Friday.