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Steller's jay (Cyanocitta stelleri) is a bird native to western North America and the mountains of Central America, closely related to the blue jay (C. cristata) found in eastern North America. It is the only crested jay west of the Rocky Mountains. It is also sometimes colloquially called a "blue jay" in the Pacific Northwest, but is distinct ...
The Canada jay is a relatively large songbird, though smaller than other jays. A typical adult Canada jay is between 25 and 33 cm (9.8 and 13.0 in) long. Its wingspan is around 45 cm (18 in). It weighs about 65 to 70 g (2.3 to 2.5 oz). Adults have medium grey back feathers with a lighter grey underside.
The blue jay is a noisy, bold, and aggressive passerine. It is a moderately slow flier (roughly 32–40 km/h or 20–25 mph) when unprovoked. [27] It flies with body and tail held level, with slow wing beats. Its slow flying speeds make this species easy prey for hawks and owls when it flies in open areas.
The pinyon jay is a bluish-grey coloured bird with deeper head colouring and whitish throat with black bill, legs and feet.Roughly intermediate between the blue jay and the Eurasian jay in size, its overall proportions are similar to Clark's nutcracker (Nucifraga columbiana) and this can be seen as convergent evolution, as both birds fill similar ecological niches.
Steller's eider (Polysticta stelleri) is a migrating Arctic diving duck that breeds along the coastlines of eastern Russia and Alaska. It is the rarest, smallest, and fastest flying of the eider species. [3] Due to the extensive contraction of its breeding range, the Alaska-breeding population of Steller's eider was listed as vulnerable in 1997 ...
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, 135 species are included in this family. The genus Corvus containing 50 species makes up over a ...
Cyanocorax is a genus of New World jays, passerine birds in the family Corvidae. The generic name is derived from the Greek words κυανος (kuanos), meaning "dark blue," and κοραξ (korax), meaning "raven". [2][3] It contains several closely related species that primarily are found in wooded habitats of Mexico and Central and South ...
This species is 58.5 to 76.5 cm (23.0 to 30.1 in) long, more than half of which is the tail, and weight is 225–251 g (7.9–8.9 oz). [8] Only a very few corvids, including the black-billed magpie, the red-billed blue magpie and the closely related white-throated magpie-jay, have a comparable tail length.