Sounds like All Good to me.
18 to 21 days.frome the day she started to sit full time.
If you listen carefully you will be able to hear them in the egg before they hatch.
Hello, I have two cockatiels which have laid a batch of eggs, it has been nearly 15 days, and I candled one of the eggs to discover large webs of veins. I have concluded these eggs are fertile, and I'm wondering how much long it will take for them to hatch? (If they do) Thanks in advance!