Solitary Eagle
Buteogallus solitarius
Rare. Very large, short-tailed eagle of highland and foothill forest. Like many hawks, soars mainly in late morning and is very rarely seen perched. Many reports of Solitary Eagle refer to misidentified Common Black Hawk, which also has blackish plumage and a single white tail band on its short tail. The eagle is much larger, with thicker legs, and feet that almost reach the tail tip in flight. Adult Solitary is slaty gray (vs. blackish on Black Hawks). Immature has diffusely patterned brownish tail and dark thighs, unlike black hawks.
识别特征
The adult solitary eagle is uniformly dark gray, often appearing black, with white markings on the tail. It is 63 to 79 cm (25 to 31 in) and has a 152 to 188 cm (5 ft 0 in to 6 ft 2 in) wingspan. With a body mass of approximately 3 kg (6.6 lb), it appears to rival its similarly-weighted sister species, the Chaco eagle, as the largest living member of the Buteoninae subfamily, although the black-chested buzzard-eagle is similar or only marginally smaller in weight. It appears very similar to the common black hawk and great black hawk, but is much larger and has significantly broader wings, extending nearly to the tip of the tail. The exceptionally broad wings are one of the prime distinguishing characteristics of this species. Its body also has quite a thickset appearance.<p>The juvenile is mottled brown and tan, with markings around the eyes. It otherwise resembles the adult.
分类信息
Genus: Buteogallus; Family: Accipitridae; Order: Accipitriformes.
- 学名
- Buteogallus solitarius
- 命名信息
- (Tschudi, 1844)
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Buteogallus
分布与栖息地
The solitary eagle is native to Mexico and Central and South America. It is found in mountainous or hilly forests, at elevations between 600 m and 2,200 m. The frequent reports from lowlands are usually misidentifications of another species, usually the common black hawk or great black hawk; no reports from lowlands have been confirmed. It is rare that in all areas of its range and poorly known. Very little is known about its diet, other than that it appears to have often been predating large snakes and one adult pair was seen hunting deer fawns. The remains of a chachalaca were noted in one nest.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Sri Lanka Scimitar-Babbler
Pomatorhinus melanurus
A striking babbler, with a long, bright yellow-orange downcurved bill, bold white eyebrow, deep chestnut upperparts, and clean white underparts. Inhabits the understory of forested areas and nearby scrub in both the lowlands and mountains, where typically encountered in pairs, and often moving with mixed species flocks. Distinctive song comprised of staccato “yee-doo-doo-doo” notes, sometimes given in duet with the second bird uttering a strident “ker-trick”.
Chestnut Quail-thrush
Cinclosoma castanotum
Heavily patterned terrestrial bird of eastern South Australia, northwestern Victoria, and western New South Wales. White eyebrow and moustache, with a deep chestnut-brown back and intricately patterned wing. Female has white belly and gray chest, male white belly, gray flanks, and black chest and throat. Note gray sides rather than warm brown sides of Cinnamon and Chestnut-breasted quail-thrushes. Usually seen walking around in areas of open mallee woodland and shrubland. Call a long, high-pitched whistled "seeeep."
Pale-browed Tinamou
Crypturellus transfasciatus
Secretive chickenlike bird that walks on the ground inside forest. Very plump; looks tailless. A distinctive tinamou of dry forests, can even be detected as it noisily runs through dry leaf litter. Visually striking with bright coral-red legs and heavily barred back and wings (more prominent on females). Also note pale eyebrow. Otherwise grayish-brown overall. Fairly common within limited range in southwestern Ecuador and northwestern Peru. Occurs in dry scrubby forests and second-growth, usually with fairly thick understory. More often heard than seen; listen for its explosive rising whistle.
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