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The larger species of raven are the common raven, thick-billed raven, white-necked raven and brown-necked raven, with the common and thick-billed ravens being the world's largest raven species and the little and fan-tailed ravens being the smallest. The Chihuahuan raven is similar in appearance to the Australian raven, although with dark brown ...
Populations in this area are the smallest ravens in North America. They are sometimes included in C. c. sinuatus, [14] but are genetically distinct from that and other subspecies, more closely related to the chihuahuan raven C. cryptoleucus (see Evolutionary history, below). [16] C. c. varius Brünnich, 1764: Akureyri, Iceland Iceland and the ...
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.
Corvus cryptoleucus Couch, 1854 – Chihuahuan raven (southwestern United States and northwestern Mexico) Corvus rhipidurus Hartert, EJO, 1918 – fan-tailed raven (eastern Africa, Middle East) Corvus albicollis Latham, 1790 – white-necked raven or Cape raven (southern, central, and eastern Africa)
Common ravens. Order: Passeriformes Family: Corvidae. The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers, and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence. Pinyon jay, Gymnorhinus cyanocephalus
The thick-billed raven (Corvus crassirostris), a corvid from the Horn of Africa, shares with the common raven the distinction of being the largest bird in the corvid family. The thick-billed raven averages 64 cm (25 in) in length, with a range of 60 to 70 cm (24 to 28 in) and weighs approximately 1.15 kg (2.5 lb) in females and 1.5 kg (3.3 lb ...
The Sinaloa crow (Corvus sinaloae) appears to be genetically extremely close to this bird and can be considered the western form of it though the voice is quite different, indeed a third species, the fish crow (Corvus ossifragus) of the southeastern United States appears to be very closely related to them also and the three may be considered a superspecies.
The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers, and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence. Canada jay, Perisoreus canadensis (n) Pinyon jay, Gymnorhinus cyanocephalus (n) Steller's jay, Cyanocitta stelleri (n)