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The type species is the common raven (Corvus corax); [11] others named by Linnaeus in the same work include the carrion crow (C. corone), hooded crow (C. cornix), rook (C. frugilegus), and two species which have since been moved to other genera, the western jackdaw (now Coloeus monedula) and the Eurasian magpie (now Pica pica).
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. Currently, 139 species are included in this family.
The rook is a fairly large bird, at 280 to 340 g (9.9 to 12.0 oz) adult weight, 44 to 46 cm (17 to 18 in) in length and 81 to 99 cm (32 to 39 in) wingspan. [8] It has black feathers that often show a blue or bluish-purple sheen in bright sunlight.
The rook has a high-pitched kaaa, but the crow's guttural, slightly vibrant, deeper croaked kraa is distinct from any note of the rook. [10] The carrion crow is noisy, perching on a vantage point such as a building or the top of a tree and calling three or four times in quick succession, with a slight pause between each series of croaks.
Corvus capensis Lichtenstein, MHC, 1823 – Cape crow or Cape rook (east and southern Africa) Corvus frugilegus Linnaeus , 1758 – rook (Eurasia, introduced to New Zealand ) Corvus brachyrhynchos Brehm, CL , 1822 – American crow (the United States , southern Canada and northern Mexico )
A raven is any of several larger-bodied passerine bird species in the genus Corvus. These species do not form a single taxonomic group within the genus. There is no consistent distinction between crows and ravens; the two names are assigned to different species chiefly based on their size.
The large-billed crow (Corvus macrorhynchos), formerly referred to widely as the jungle crow, is a widespread Asian species of crow.It is very adaptable and is able to survive on a wide range of food sources, making it capable of colonizing new areas, due to which it is often considered a nuisance, especially on islands.
The common raven or northern raven (Corvus corax) is a large all-black passerine bird. It is the most widely distributed of all corvids , found across the Northern Hemisphere . There are 11 accepted subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from ...