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A rook skull The rook is a very social bird; in the evenings they gather in large flocks, often in thousands. Rooks are highly gregarious birds and are generally seen in flocks of various sizes. Males and females pair-bond for life and pairs stay together within flocks.
The Rooks Have Come Back Again, Alexei Savrasov, 1871, canvas, oil, The Tretyakov Gallery, Moscow Colonies of Indian yellow-nosed albatrosses on Amsterdam Island Fur seals in a rookery in the Pribilof Islands in the 1950s. A rookery is a colony breeding rooks, and more broadly a colony of several types of breeding animals, generally gregarious ...
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, magpies, jackdaws, jays, treepies, choughs, and nutcrackers. [1] [2] [3] In colloquial English, they are known as the crow family or corvids.
Rooks nest in large, noisy colonies consisting of multiple nests, often untidily crammed into a close group of treetops called a rookery. The word might also be linked to the slang expression to rook (meaning to cheat or steal), a verb well established in the 16th century and associated with the supposedly thieving nature of the rook bird.
Marsupials do not exhibit a nesting instinct per se, because the mother's pouch fulfills the function of housing the newborns. Nest building is performed in order to provide sufficient shelter and comfort to the arriving offspring. [6] Threats, such as predators, that decrease the chance of survival will increase care of offspring. [7]
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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.
The gentoo penguin (/ ˈ dʒ ɛ n t uː / JEN-too) (Pygoscelis papua) is a penguin species (or possibly a species complex) in the genus Pygoscelis, most closely related to the Adélie penguin (P. adeliae) and the chinstrap penguin (P. antarcticus).