36 to 40 days
Tundra Swans:The time from laying to hatching is 29-30 days for Bewick's Swan and 30-32 days for the Whistling Swan.Swans lay eggs, so they do not get pregnant.
Swans are not mammals, therefore, they lay eggs and sit on them until they hatch.
They stay in the eggs for about thirty-five days.
10000 hours
no
for 21 or 22 days.
in Canada
pink
depens
1 day
Spring
The female kakapo incubates her eggs for around 30 days.