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The bald eagle was one of the many species originally described by Carl Linnaeus in his 18th-century work Systema Naturae, under the name Falco leucocephalus. [9] The bald eagle forms a species pair with the white-tailed eagle of Eurasia. This species pair consists of a white-headed and a tan-headed species of roughly equal size; the white ...
Steller's juveniles have a different wing shape (roughly paddle-shaped) and a considerably more massive and paler bill, which is yellow even in juveniles unlike in bald and white-tailed eagles. Juvenile Steller's sea eagles are a distinctly darker soot colour than juvenile white-tailed eagles with even less whitish showing on the body than the ...
A baby red-tailed hawk, right, was plucked by bald eagle parents and is now sharing a nest in San Simeon with two eaglets, seen on May 21, 2024. “I think it’s such a privilege and a absolutely ...
Clockwise from top left: Bald eagle (Haliaeetus leucocephalus), cinereous harrier (Circus cinereus), greater spotted eagle (Clanga clanga), harpy eagle (Harpia harpyja), secretarybird (Sagittarius serpentarius), osprey (Pandion haliaetus), slate-colored hawk (Buteogallus schistaceus), Galapagos hawk (Buteo galapagoensis), white-backed vulture (Gyps africanus) (center).
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In some cases, the bald eagles inadvertently actually raise the nestling red-tails themselves and the baby red-tailed hawks may successfully fledge. [261] In one case, a red-tailed hawk was observed to kill a bald eagle chick, whether this was predatory or competitive, it quickly abandoned the dead nestling after the eagle's parents returned. [262]
More surprisingly, the smaller, much paler-bellied species pair Bonelli's eagle (A. fasciatus) and African hawk-eagle (A. spilogaster), previously included in the genus Hieraaetus, have been revealed to be genetically much closer to the Verreaux's and golden eagle lineage than to other species traditionally included in the genus Aquila. [4] [5] [2]
The Bonelli's eagle tends to be less contrastingly marked below, being rather creamy and lacking strong markings. The juvenile Bonelli's is a bit more similar to the juvenile African hawk-eagle but can be told apart by proportions and by being paler backed and again lacks the clear "windows" of the juvenile hawk-eagle.