What did your Hansdotter ancestors do for a living? Share Census records can tell you a lot of little known facts about your Hansdotter ancestors, such as occupation.
Best Answer: It varies by species..but most passerines (perching birds) take approximately 2 weeks to hatch their eggs, and usually another 2 weeks before the young leave the nest.
In my experience about 50% of the time the eggs hatch on the same day - indicating that the birds started incubation temperatures after the second egg was laid or within 8 hours of it being laid. The eggs of the two egg clutch species can be laid from as little as 21 hours to over 45 hours between the eggs.