OK, I set with the New Years bunch a batch of white Silkie eggs. These were shipped eggs, and out of 21, 10 made it to lock down...2 hatched a day late on the 2nd, and the rest are quiet. When I removed the chicks to the brooder, I took a quick look at the other eggs, and they all appear to be developed, but I didn't see any movement. How long do I keep them in the bator before I call it quits? I would think if they were going to hatch, they would have with the other two, but even they were nearly 24hrs apart hatching....so how long do I wait before doing eggtopsies?