A typical clutch for a Mallard Duck may be up to 13 eggs; the mother lays the eggs at one- to two-day intervals, and does not begin incubation until all eggs are laid. ... Once incubation begins, the Mallard will sit on her eggs for most of the day, for about 25-29 days.

How often do mallards lay eggs?

Since Mallards lay one egg a day, this will ultimately take up to 12-13 days. Remember, she doesn't start incubation until all eggs are laid, so finding a nest with only three or four eggs and no mother duck does not mean that the nest is abandoned.

Do domestic mallards lay eggs?

Ducks start laying eggs at about five to six months old and continue to lay for several years.