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The large-billed crow (Corvus macrorhynchos), ... In size the eggs average about 1.45 by 1.05 inches. [12] The jungle crow can serve as a host for the Asian koel.
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.
Although the American crow and the hooded crow are very similar in size, structure and behavior, their calls and visual appearance are different. From beak to tail, an American crow measures 40–50 cm (16–20 in), almost half of which is tail. Its wingspan is 85–100 cm (33–39 in).
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 long-billed crow can be differentiated from other crows by its large size and glossy plumage, its long beak and its white iris. [3] The only other crow within its range is the Torresian crow (Corvus orru) which has a much smaller beak and inhabits more open areas rather than forests. [4]
The largest species on average is the yellow-billed loon (Gavia adamsii) of the Arctic, at up to 1 m (3.3 ft) and 7 kg (15 lb). One exceptionally large North American Great northern diver (Gavia immer) was weighed at 8 kg (18 lb), heavier than any recorded yellow-billed loon. Wingspans of the largest loons can reach 1.52 m (5.0 ft).
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The proportions resemble the common raven with a heavy bill, but is about the same size as a carrion crow, or slightly larger than the American crow (44–51 cm (17–20 in) long). The plumage is all-black with a rich purple-blue gloss in good light.