A female lays one egg per day laying usually 4-5 eggs. So it takes around 4-5 days. Incubation starts after all the eggs are layed.
Until they hatch;13-14 days after they're laid.
The female kakapo incubates her eggs for around 30 days.
Peahens do not become pregnant, they lay and sit on eggs.
Around 28 days or a month
Yes. Kookaburras incubate their eggs by sitting on them. Both the male and female sit on the eggs, sharing their incubation duties.
No. I don't think so.
yes normal ones do
10000 hours
for 21 or 22 days.
Well, it depends on if the cockatiel is willing to raise the egg that is obviously not it's egg. If it is, then the bluebird chick will learn how to live life as a cockatiel. The bluebird will never have a crest, but it will learn the cockatiel's language as it's own and think it is a cockatiel because that is the type of bird it is living with. However, if you had a wild cockatiel and you set a bluebird egg in with the other eggs, the cockatiel would reject the eggs because they do not look right or smell right, and would drop the egg out of the nest. I hope that answered your question. :) - Emily Sage
the southern black koi fish males sit on the eggs until the eggs all hatch only if the female brings food to them every hour or he will eat them all.
1 day
No, absolutely not. Hens sit on their eggs until they hatch. They actually nestle their feathers above and around the eggs and keep them warm, but people say they are sitting or setting on their eggs.