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Deep cup nest of the great reed-warbler. A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a specific structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too ...
A so-called "cathedral" mound produced by a termite colony. Structures built by non-human animals, often called animal architecture, [1] are common in many species. Examples of animal structures include termite mounds, ant hills, wasp and beehives, burrow complexes, beaver dams, elaborate nests of birds, and webs of spiders.
A nest is a structure built for certain animals to hold eggs or young. Although nests are most closely associated with birds, members of all classes of vertebrates and some invertebrates construct nests. They may be composed of organic material such as twigs, grass, and leaves, or may be a simple depression in the ground, or a hole in a rock ...
The complexity of bird nests varies markedly, perhaps indicating a range in the sophistication of tool use. For example, compare the highly complex structures of weaver birds [115] to the simple mats of herbaceous matter with a central cup constructed by gulls, and it is noteworthy that some birds do not build nests, e.g. emperor penguins. The ...
Nest building is an important part of the pair-bonding process. Most gull nests are mats of herbaceous matter with a central nest cup. Nests are usually built on the ground, but a few species establish their nests on cliffs (the usual preference for kittiwakes), and some choose to nest in trees and high places (e.g. Bonaparte's gulls).
The species were chosen based on data from Project FeederWatch, a citizen science program run by the Cornell Lab, which allows people to submit sightings of birds they've seen locally.
The common murre nests in densely packed colonies (known as "loomeries" [citation needed]), with up to twenty pairs occupying one square metre at peak season. [citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. Despite the high density of murre breeding sites, sites may vary ...
The site is owned by the Snowdonia National Park Authority, lies entirely within the Craig yr Aderyn SSSI, and is named after the large number of birds, such as the Chough (Pyrrhocorax pyrrhocorax), that roost and nest on the peak. [5] It is 2 miles (3.2 km) from the Cardigan Bay coast. [6] The hill is used by a number of species of bird for ...