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A carrion crow scavenging on a beach in Dorset, England. A crow (pronounced / ˈ k r oʊ /) is a bird of the genus Corvus, or more broadly, a synonym for all of Corvus.The word "crow" is used as part of the common name of many species.
Carrion crows can become tame near humans, and can often be found near areas of human activity or habitation including cities, moors, woodland, sea cliffs and farmland [12] where they compete with other social birds such as gulls, other corvids, and ducks for food in parks and gardens.
Hooded crow (Corvus cornix) in flight Jungle crow (Corvus macrorhynchos) scavenging on a dead shark at a beach in Kumamoto, Japan. Medium-large species are ascribed to the genus, ranging from 34 cm (13 in) of some small Mexican species to 60–70 cm (24–28 in) of the large common raven and thick-billed raven, which together with the lyrebird represent the larger passerines.
Since Australia was settled by Europeans, all species of crows and ravens have been colloquially known as crows by the general population and are difficult to distinguish. [3] In his 1865 Handbook to the Birds of Australia John Gould noted a single species of corvid in Australia, Corvus australis , which he called the white-eyed crow.
In Northern Australia Torresian crows have developed a technique to kill and eat the introduced poisonous cane toad without ingesting the poison it secretes from its skin and poison glands on either side of its head, by flipping it onto its back. The crows only feed on the intestines and part of the thighs of the toad, thus avoiding the poison.
Image:BlankMap-Europe-v3.png – Europe without borders, showing some of North Africa and Western Asia. Image:BlankMap-Europe-v4.png – Version of Image:BlankMap-Europe-v3.png, but with borders shown; Image:BlankMap-Europe-v5.png – White background, black borders, blue sea.
Africa has 61 international tripoints (the highest number of international tripoints), followed by Asia with 51, Europe with 48, South America with 13, and North America with two. Oceania has no international tripoints by virtue of being almost entirely island countries with no land borders.
Early/Middle Pleistocene of Europe; possibly a subspecies of C. corone/cornix) † Corvus antecorax – (fossil: Late Pliocene – Late Pleistocene of Europe; may be C. janossyi, possibly a subspecies of C. corax) † Corvus bragai – (fossil: Pliocene/Pleistocene transition of South Africa) [4]