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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.
Australian ravens generally nest in tall trees, never near to the ground as some species do. [33] The nest also functions as a lookout post and so tall or emergent trees are selected. [45] The ravens occasionally nest on buildings, telegraph poles, [33] or tall windmills which allow the species to occupy areas lacking in tall trees. Windmills ...
There is no consistent distinction between crows and ravens; the two names are assigned to different species chiefly based on their size. The largest raven species are the common raven and the thick-billed raven ; these are also the largest passerine species.
The voice of ravens is also quite distinct, its usual call being a deep croak of a much more sonorous quality than a crow's call, though the calls of other ravens like the fan-tailed raven and brown-necked raven can be confused where they occur together with common ravens in parts of southwest Asia and northern Africa; [41] of these two, the ...
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.
They were observed warding off the Australian ravens but to a degree permitting the crows to pass through their territories. [29] Forest ravens will defend their territory by chasing and mobbing intruding birds of prey as large as wedge-tailed eagles and white-bellied sea eagles. Agonistic displays to ward off potential intruders include flying ...
The Ravens are 5-5 at home in the playoffs and 11-8 on the road. In coach John Harbaugh's 17 seasons at the helm, they've won eight road postseason games — no other team has more than six in ...
The genus contains 50 species: [1] Corvus splendens Vieillot, 1817 – house crow or Indian house crow (Indian subcontinent, Southeast Asia, Middle East, eastern Africa); Corvus moneduloides Lesson, RP, 1831 – New Caledonian crow (New Caledonia)