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.
Incubation time is roughly correlated with the weight of the egg. The eggs of small songbirds generally hatch in about 11 days; those of the Royal Albatross in about 80 days. More information on incubation, based on careful, long-term observations of nests, is needed for most species of North American birds.ince, in general, birds do not begin incubating until the clutch is complete, incubation time is defined as the period from the laying of the last egg of the clutch until that egg hatches (or, if individual eggs can't be identified, from the last egg laid to the first egg hatched).