Between 28 and 30 days. You can candle them by flashing a bright light through the shell to look for veins at around 5-7 days they should be noticeable. You can watch them grow in the shell through out the 28-30 days like this.
28 to 30 Days
We have a stray peahen who had 4 eggs in the window well of our home around the 21st of May and it is now the 30th of June. Could they still be alive and how do we get them if they are not so she can get up. She stays there all day and I have been giving her food.
One of my peacocks eggs hatched but the others havent it has been long time