Oh... i mean if it misses the aircell and pips straight to the shell it will need more time to complete absorbing the yolk.I usually give it 24 hours... a 10 hour break is not uncommon in MY experience.
To me... you might also need to let your two hatchers get some more strength before adding to the older chicks or they could easily be trampled. Chicks are usually at least 2-3 days old by the time they arrive at feed stores. And you would be surprised just how much of a difference there is in even just a couple hours difference at hatch. Example... new hatchlings stay on paper towels or wood pellets for a few days while they learn what feed is before switching to shavings here at my house. Where as the feed store chicks are usually well on their way already. Just be careful and watch, I'm sure you can figure it out.
Maybe being summer will have helped some... That's on par with a power outage... which aside from decreased hatching can actually cause deformities like bent toes and splay leg... VERY likely other internal stuff (digestion system trouble) we can't see. Don't try to judge that too early after they hatch though as it can take them several hours to recover from the ordeal and pull it together to get their land legs under them. One hatch I did with an outage... 50% of what hatched had deformities and the other 50% were perfect.
It's probably just the lighting that makes your Ameraucana egg not look very blue. I got bantam wheaten Ameraucana this year and it's a really fun color. Having a difficult time learning how to select in the females. The males are a bit easier since I already raise black copper Marans and they are a tad similar.
What is meant by missed the internal pip?
