Here is the moment about 2 minutes after the first chick hatched when CR (who happened to be on incubation duty at the time) handed over to Bella.
She must have heard it squeaking as she seems very interested in what CR was sitting on. She even gives it a gentle nudge before brooding it.
Sadly, this chick died the following day, possibly from starvation as for some reason, it didn't look like it was ever given anything to eat.
Let's hope that chicks #2 and #3 are OK. They are due to hatch any time now.