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Nesting sites are typically on the ground, hidden in vegetation where the female's speckled plumage serves as effective camouflage, [90] but female mallards have also been known to nest in hollows in trees, boathouses, roof gardens and on balconies, sometimes resulting in hatched offspring having difficulty following their parent to water. [91]
This duck nests in a tree cavity laying 9–11 cream-white eggs, similar to the Mandarin ducks. [10] The female incubates them while the male stands guard. Once the ducklings are ready to leave the nest, the female flies to the ground and the duckling will leap to the ground and follow their parents.
They are incubated by the female and hatch synchronously after around 25 days. When off the nest the female will cover the eggs with down. The young are precocial, nidifugous and can feed themselves. They fledge when aged 50–55 days. [21] Like many ducks, common pochards suffer a high rate of parasitic egg-laying, a behaviour also known as ...
The female does all the incubating and is abandoned by the male about 1 to 2 weeks into incubation. The young remain in the nest for about 24–36 hours. Brood parasitism is quite common with other common goldeneyes, [ 13 ] and occurs less frequently with other duck species.
The king eider (pronounced / ˈ aɪ. d ər /) (Somateria spectabilis) is a large sea duck that breeds along Northern Hemisphere Arctic coasts of northeast Europe, North America and Asia. The birds spend most of the year in coastal marine ecosystems at high latitudes, and migrate to Arctic tundra to breed in June and July.
They can be distinguished from most ducks on size, shape, and the speculum. Separation from female common teal is problematic. In non-breeding (eclipse) plumage, the drake looks more like the female. It is a common duck of sheltered wetlands, such as taiga bogs, and usually feeds by dabbling for plant food or grazing. It nests on the ground ...
Studies showed a strong fidelity in the nesting areas of surf scoters over the years. [20] The building of the nest usually starts in mid-May to early June and it occurs on the ground close to the sea, lakes or rivers, in woodland or tundra. Females dig a bowl-shaped nest in the ground and lines it with nearby ground debris and down. About 5 to ...
The nest is usually placed in a hole in a tree, but sometimes an old nest of a corvid is used and occasionally the nest will be placed on the ground. The clutch of 8–10 pale cream eggs is incubated only by the female. The eggs hatch after 26–32 days. The precocial downy ducklings leave the nest site when dry and are cared for by the female ...