Hearing Peeps?

[Birchwood]

Please bear with me, I'm a newbie! I am supposed have some chicks hatch tonight! I have been reading people saying that they can hear peeping coming from the eggs, when should you start hearing them?

 

[Mourningdove]

you should start hearing them just before they start to hatching!

 

[Birchwood]

Is it really 21 days, down to the hour? Or could I be staring at the incubator for hours?

 

[newdock]

I've had mine hatch anywhere from 19 days to 23 days.