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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 ...
Great blue herons build a bulky stick nest. Nests are usually around 50 cm (20 in) across when first constructed, but can grow to more than 120 cm (47 in) in width and 90 cm (35 in) deep with repeated use and additional construction. [42] If the nest is abandoned or destroyed, the female may lay a replacement clutch.
Nest of Polistes dominula, host to the cuckoo wasp P. semenowi [a] One of only four true brood-parasitic wasps is Polistes semenowi. [a]. This paper wasp has lost the ability to build its own nest, and relies on its host, P. dominula, to raise its brood. The adult host feeds the parasite larvae directly, unlike typical kleptoparasitic insects.
A nest near Kolkata, India The long and straight hind claw is characteristic of the genus Sunning (West Bengal, India) Immature of nominate race showing barred/speckled underside. Haryana, India Adult bird near Kolkata, India. This is a large species of cuckoo at 48 cm. The head is black, upper mantle and underside are black glossed with purple.
A black swan nest is essentially a large heap or mound of reeds, grasses and weeds between 1 and 1.5 metres (3– 4 + 1 ⁄ 2 feet) in diameter and up to 1 metre high, in shallow water or on islands. [3] [11] A nest is reused every year, restored or rebuilt as needed. Both parents share the care of the nest.
These birds mainly eat terrestrial arthropods and snails, and also include fruit [23] in their diet during winter. [2] The nest, referred to as the "oven" (which gives the bird its name), is a domed structure placed on the ground, woven from vegetation, and containing a side entrance. The female usually lays 4–5 eggs speckled with brown or gray.
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Oology (/ oʊ ˈ ɒ l ə dʒ i /; [1] also oölogy) is a branch of ornithology studying bird eggs, nests and breeding behaviour. The word is derived from the Greek oion, meaning egg. Oology can also refer to the hobby of collecting wild birds' eggs, sometimes called egg collecting, birdnesting or egging, which is now illegal in many ...