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Spizaetus
''Spizaetus'' is the typical hawk-eagle birds of prey genus found in the tropics of the Americas. It was however used to indicate a group of tropical eagles that included species occurring in southern and southeastern Asia and one representative of this genus in the rainforests of West Africa. The Old World species have been separated into the genus '' Nisaetus''. Several species have a prominent head crest. These are medium to large-sized raptors, most being between long, and tend to be long-tailed and slender. The American Ornithologists' Union merges '' Spizastur'' into ''Spizaetus'' since 2007. ''Spizaetus'' eagles are forest birds with several species having a preference for highland woodlands. They build stick nests in trees. The sexes are similarly plumaged with typical raptor brown upperparts and pale underparts, but young birds are distinguishable from adults, often by a whiter head. These eagles eat medium-sized vertebrate prey such as mammals, birds and reptiles. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornate Hawk-eagle
The ornate hawk-eagle (''Spizaetus ornatus'') is a fairly large bird of prey from the Tropics, tropical Americas. Formerly, some authorities referred to this species as the crested hawk-eagle, a name that may cause some confusion as it is more commonly used for an Changeable hawk-eagle, Asian eagle species.Friedmann H. (1935). ''A new race of the Crested Hawk-eagle Spizaetus ornatus''. Journal of the Washington Academy of Sciences, 25 (10): 450-451. Like all eagles, it is in the family Accipitridae. This species has a feathered tarsus that marks it as a member of the ''Aquilinae'' or booted eagle subfamily.Lerner, H., Christidis, L., Gamauf, A., Griffiths, C., Haring, E., Huddleston, C.J., Kabra, S., Kocum, A., Krosby, M., Kvaloy, K., Mindell, D., Rasmussen, P., Rov, N., Wadleigh, R., Wink, M. & Gjershaug, J.O. (2017). ''Phylogeny and new taxonomy of the Booted Eagles (Accipitriformes: Aquilinae)''. Zootaxa, 4216(4), 301-320. This species is notable for the vivid colors and bold ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spizaetus Ornatus
The ornate hawk-eagle (''Spizaetus ornatus'') is a fairly large bird of prey from the tropical Americas. Formerly, some authorities referred to this species as the crested hawk-eagle, a name that may cause some confusion as it is more commonly used for an Asian eagle species.Friedmann H. (1935). ''A new race of the Crested Hawk-eagle Spizaetus ornatus''. Journal of the Washington Academy of Sciences, 25 (10): 450-451. Like all eagles, it is in the family Accipitridae. This species has a feathered tarsus that marks it as a member of the ''Aquilinae'' or booted eagle subfamily.Lerner, H., Christidis, L., Gamauf, A., Griffiths, C., Haring, E., Huddleston, C.J., Kabra, S., Kocum, A., Krosby, M., Kvaloy, K., Mindell, D., Rasmussen, P., Rov, N., Wadleigh, R., Wink, M. & Gjershaug, J.O. (2017). ''Phylogeny and new taxonomy of the Booted Eagles (Accipitriformes: Aquilinae)''. Zootaxa, 4216(4), 301-320. This species is notable for the vivid colors and bold markings of adults, which differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spizaetus Isidori
The black-and-chestnut eagle (''Spizaetus isidori''), also known as Isidor's eagle, is a large South American species of bird of prey in the family Accipitridae. It is often placed in the monotypic genus ''Oroaetus''. However, recent genetic testing indicates that this species is fairly closely related to ''Spizaetus'' species and thus the species should be included in that genus.Lerner, H., Christidis, L., Gamauf, A., Griffiths, C., Haring, E., Huddleston, C.J., Kabra, S., Kocum, A., Krosby, M., Kvaloy, K., Mindell, D., Rasmussen, P., Rov, N., Wadleigh, R., Wink, M. & Gjershaug, J.O. (2017). ''Phylogeny and new taxonomy of the Booted Eagles (Accipitriformes: Aquilinae)''. Zootaxa, 4216(4), 301–320. The black-and-chestnut eagle is a typical forest raptor, hunting primarily small to medium-sized mammals and birds and constructing a large nest in a tall tree.Zuluaga, S., Vargas, F. H., Araoz, R., & Grande, J. M. (2022). Main aerial top predator of the Andean Montane Forest copes w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Hawk-eagle
The mountain hawk-eagle (''Nisaetus nipalensis'') or Hodgson's hawk-eagle, is a large bird of prey native to Asia. The latter name is in reference to the naturalist, Brian Houghton Hodgson, who described the species after collecting one himself in the Himalayas. A less widely recognized common English name is the feather-toed eagle. Like all eagles, it is in the family Accipitridae. Its feathered tarsus marks this species as a member of the subfamily Aquilinae. It is a confirmed breeding species in the northern part of the Indian subcontinent, from India, Nepal (hence the epithet ''nipalensis'') through Bangladesh to Thailand, Taiwan, Vietnam and Japan, although its distribution could be wider still as breeding species. Like other Asian hawk-eagles, this species was earlier treated under the genera of ''Spizaetus'' but genetic studies have shown this group to be paraphyletic, resulting in the Old World members being placed in ''Nisaetus'' (Hodgson, 1836) and separated from the Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Changeable Hawk-eagle
The changeable hawk-eagle ''(Nisaetus cirrhatus)'' or crested hawk-eagle is a large bird of prey species of the family (biology), family Accipitridae. More informal or antiquated English common names include the marsh hawk-eagle or Indian crested hawk-eagle.Ferguson-Lees, J., & Christie, D. A. (2001). ''Raptors of the world''. Houghton Mifflin Harcourt. It is a member of the subfamily Aquilinae, with signature feathers, absent in tropical raptors from outside this subfamily, covering the tarsus. It was formerly placed in the genus ''Spizaetus'', but studies pointed to the group being paraphyletic resulting in the Old World members being placed in ''Nisaetus'' and separated from the New World species. It is a typical "hawk-eagle" in that it is an agile forest-dwelling predator and like many such eagles readily varies its prey selection between birds, mammals or reptiles as well as other vertebrates.Naoroji, R., & Schmitt, N. J. (2007). ''Birds of prey of the Indian subcontinent''. Om ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spizastur
The black-and-white hawk-eagle (''Spizaetus melanoleucus'', formerly ''Spizastur melanoleucus'') is a bird of prey species in the eagle and hawk family (Accipitridae). It is found throughout a large part of tropical America, from southern Mexico to northern Argentina. Description As its name suggests, this is a black and white eagle, resembling the small typical eagles sometimes separated in ''"Hieraaetus"''. It is some long overall and weighs about . The head, neck and body are white; a small crest forms a black spot on top of the head, and the area around the eyes, particularly towards the bill, is also black. The wings are black with a noticeable white leading edge, and the bird has a brownish tail barred black-dark grey and with white tip. The iris is orange in adults and greyish in juveniles, the feet pale to bright yellow with black talons. The bill is black with a yellow cere. The sexes are alike in color, but the female is larger. Immature birds have pale edges on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-and-white Hawk-eagle
The black-and-white hawk-eagle (''Spizaetus melanoleucus'', formerly ''Spizastur melanoleucus'') is a bird of prey species in the eagle and hawk family (biology), family (Accipitridae). It is found throughout a large part of tropical Americas, America, from southern Mexico to northern Argentina. Description As its name suggests, this is a black and white eagle, resembling the small typical eagles sometimes separated in ''"Hieraaetus"''. It is some long overall and weighs about . The head, neck and body are white; a small Crest (feathers), crest forms a black spot on top of the head, and the area around the eyes, particularly towards the bill, is also black. The wings are black with a noticeable white leading edge, and the bird has a brownish tail barred black-dark grey and with white tip. The iris (eye), iris is orange in adults and greyish in juveniles, the feet pale to bright yellow with black talons. The bill is black with a yellow cere. The sexes are alike in color, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Hawk-eagle
The black hawk-eagle (), also known as the tyrant hawk-eagle, is a species of eagle found from central Mexico through Central America into the south of Brazil to Colombia, eastern Peru, and as far as northern Argentina. There are two known subspecies, , which is found in Southeastern Brazil and Northeastern Argentina, and the slightly smaller , which can be found elsewhere throughout the species' range. Its preferred habitats include humid and moist forests close to rivers, and several types of woodland. It is uncommon to fairly common throughout most of its range. Its closest relative is the ornate hawk-eagle, which is similar in size, appearance and behavior but lives at lower elevations. Description The black hawk-eagle is long and weighs about . It has black plumage with varying patterns on its wings and body, and white speckling in places. It has barred wings, slightly elliptical in shape, and a long, narrow tail which is rarely fanned. The four grey bars on the tail are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eagle
Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae. Eagles belong to several groups of Genus, genera, some of which are closely related. True eagles comprise the genus ''Aquila (bird), Aquila''. Most of the 68 species of eagles are from Eurasia and Africa. Outside this area, just 14 species can be found—two in North America, nine in Central and South America, and three in Australia. Eagles are not a natural group but denote essentially any kind of bird of prey large enough to hunt sizeable (about 50 cm long or more overall) vertebrates. Etymology The word "eagle" is borrowed into English from and , both derived ultimately from ("eagle"). It is cognate with terms such as , and . It is broadly synonymous with the less common English term "erne" or "earn", deriving from , from , in which it acts as the usual word for the bird. The Old English term is turn derived from and is cognate with other synonymous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flores Hawk-eagle
The Flores hawk-eagle (''Nisaetus floris'') is a large raptor in the family Accipitridae. It is an endemic species to the Lesser Sunda Islands in Indonesia. A member of the genus ''Nisaetus'', it was considered as a subspecies of and conspecific with the changeable hawk-eagle but genetic studies have evidenced it as a legitimate species. A forest dwelling predator, this species is classified as endangered due to habitat loss and persecution. Description Adults have dark brown upperparts, a brown tail with six bars, a white patch in the wings that is visible in flight, white underparts, and a white head with fine brownish streaks on the crown (many books erroneously illustrate adults with largely brown heads). Furthermore, they have sparse light dark markings about the thighs. The white patches at the upperside of the primaries are a species diagnostic. Furthermore, the tail has 6, not 4–5, bars. It has traditionally been treated as a subspecies of the changeable hawk-eagle; a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
