Originally Posted by junebuggena
Keep it at about 40%. Then, when they start to pip, raise the humidity as much as you can. Aim for at least 60% or higher.
This is what I did for the eggs. It seemed to help. The air cells got bigger. Out of 10 eggs, 3 hatched on day 21/22 perfectly fine. Then nothing else happened. No more pips or anything. 3 ended up not fully developed, not sure when they died. But the other 4 seemed completely developed just didn't hatch. Hopefully the next batch is better. It only had too high of humidity for a couple days before we got it figured out.
I did notice that out of the 20 eggs from the 2 batches, all but 1 cream legbar egg hatched. Only 1 marans egg did (but the chick ended up dying later). And 4 welsummers the first time but none the second. Could that be because the cream legbars are so much smaller it was easier for them to maneuver in the egg to hatch but the marans and welsummers were bigger so the small air cells was more of a problem for them?