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.The incubation period for swan eggs are 30-37 days, depending on breed. Bewicks 30; Black 36; Mute 37; Trumpeter 33; Whooper 33
It takes approximately 32 - 40 days depending on the breed of swan.
34 - 38 days
the way ducks are 28 days
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.
depens
pink
in Canada
1 day
Spring
The female kakapo incubates her eggs for around 30 days.