Both sexes incubate the eggs with the female sitting on the nest at night.

Both sexes incubate the eggs for at least 30 days.

Both sexes incubate the eggs and take care of the chicks.

Both sexes incubate during the day, but only the female at night.

Both sexes build the nest and incubate the eggs, which hatch in 10 to 16 days.

It is not certain which sex if not both incubated, and what the specific timeline was.

Both sexes incubate the eggs for about 17 to 19 days.

During the day both sexes incubate but at night only the female sits on the eggs.

Both sexes incubate and eggs hatch in about 12 to 14 days.

Both sexes incubate in shifts of up to six days.