Bantam cochin. Blue frizzle
If it was late yesterday evening, I'd give it at least 24 hours
You sure you want to? I'm kind of against helping late chicks since I've now had to cull 2 today.
You can start by taking tweezers and chipping away a little along what would be the zip line. If you see any blood, put it back in the incubator and wait. Do a little more every so often, letting the egg warm back up in the incubator in-between.
X2 if he decides to try