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Members of the "Buteogallus group" are also called hawks, with the exception of solitary eagle species. Buteo is the type genus of the subfamily Buteoninae. This subfamily traditionally includes eagles and sea-eagles, but Lerner and Mindell (2005) [ 8 ] proposed placing them into separate the subfamilies Aquilinae and Haliaaetinae.
The International Ornithological Committee (IOC) recognizes these 265 species of Accipitriformes distributed among four families. Among them is the family Cathartidae (New World vultures) which the American Ornithological Society (AOS), the Clements taxonomy , and BirdLife International 's Handbook of the Birds of the World place in its own ...
The most difficult to identify stages and plumage types are dark morph juveniles, Harlan's hawk and some Krider's hawks (the latter mainly with typical ferruginous hawks as mentioned). Some darker juveniles are similar enough to other Buteo juveniles that they "cannot be identified to species with any confidence under various field conditions."
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The ferruginous hawk (Buteo regalis) is a large bird of prey and belongs to the broad-winged buteo hawks.An old colloquial name is ferrugineous rough-leg, [2] due to its similarity to the closely related rough-legged hawk (B. lagopus).
Red-shouldered hawks are short- to moderate-distance migrants, with most individuals traveling distances between 300 and 1,500 km each way. The species follows leading lines, migrating along inland ridges and coastlines. Larger numbers of red-shouldered hawks are counted at coastal watch sites than at inland sites.
Composite image of Cooper's hawks for identification. Accipiter species in North America are arguably the most vexing raptor to identify in the continent. [63] [64] [65] The other two species in North America are the smaller sharp-shinned hawk (Accipiter striatus) and the larger northern goshawk (Accipiter gentilis).
The common black-hawk is a breeding bird in the warmer parts of the Americas, from the Southwestern United States through Central America to Venezuela, Peru, Trinidad, and the Lesser Antilles. It is a mainly coastal, resident bird of mangrove swamps, estuaries and adjacent dry open woodland, though there are inland populations, including a ...