I got 5 Golden Cuckoo Marans hatched Friday and Saturday. 3 Girls and 2 boys. I used 3 thermometers and 2 hygrometers, and temp and humidity seemed great the whole time. However, everybody got stuck in their eggs, except one. The pips started coming. Then I noticed one beak stop moving. They had been pipped too long with no progress. I know I shouldn't open the bator and help, but I did. I was glad I did. I started helping babies. One chick managed to hatch on his own while I was helping the others. His egg seemed normal, and he was only a little sticky. However, in 5 other eggs I found fully developed chicks with absorbed yolks suspended in what I can only decribe as semi-dried glue like substance. They had managed to get their heads in the air cell and pip, but no further. One was dead. The others are now running around the brooder. I started with 12 eggs. 5 were tossed out as clears. 5 are now healthy babies. One fully developed, pipped and died. One stopped developing at about 10 days.