What trouble signs should I look out for when hatching Peachicks?

[C-Bee-A-Pea]

Hi, guys this is going to be my first hatch with peafowl (They eggs are on day 25), and I was wandering what are some bad things that could go wrong when they try to hatch. I want to be able to help the chicks if something goes wrong.I really do not know what to look out for and how to help the chick when it is in need.

(The Pea eggs will be hatching under a hen)

Thanks.