Bat Hawk
Macheiramphus alcinus
An acrobatic, swift-like raptor with angular wings and a massive gape; capable of snatching prey from the air and devouring it in a flash while still on the wing. Dark with varying amounts of white on the underside; African birds have patchy white throughout the underparts, while white is restricted to the throat and lower belly on New Guinean birds and solely to the throat in Southeast Asian birds. Inactive during the day; hunts at dawn and dusk, and occasionally into the night if light is sufficient. Generally uncommon and localized, most reliably encountered near large bat roosts in forested areas, but can also be seen over open forest, fields, and fringes of habitation.
识别特征
The bat hawk is a slender, medium-sized bird of prey, usually about 45 cm long. It has long wings and a falcon-like silhouette while in flight. Adults are dark brown or black, with a white patch on the throat and chest, and have a white streak above and below each eye. Juveniles are mottled brown and have more white plumage than adults.
分类信息
The spelling of the genus name is problematic. Charles Lucien Bonaparte described the bat hawk in 1850, naming it Macheiramphus alcinus.: 482–483 Westerman described it in 1851 under the name Machaerhamphus alcinus, and this form was used for over a hundred years because it was believed to have been published in 1848. In 1960 Deignan pointed out that Bonaparte has priority, but in 1979 Amadon claimed that Macheiramphus alcinus is an abandoned name. Brooke and Clancey note that the preservation of a junior synonym requires a special ruling from the ICZN that Amadon didn't obtain; whilst Dickinson argues that Deignan's resurrection of the name in 1960 should stand because it predates the first edition of the Code in 1961.
- 学名
- Macheiramphus alcinus
- 命名信息
- Bonaparte, 1850
- 目
- Accipitriformes
- 科
- Accipitridae
- 属
- Macheiramphus
分布与栖息地
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
其他鸟类
White-crowned Robin-Chat
Cossypha albicapillus
A large and colorful robin-chat with a black face mask that continues onto the chin. The color of the crown is pure white in the far western part of the range, and white with black markings elsewhere. A shy bird of dense thickets, gardens, and forest, often along rivers and streams. Similar to Snowy-crowned Robin-Chat, but larger, usually with black markings in the white crown, and with a black rather than orange chin. Usually detected by song, a fast and complex mix of musical whistles.
Kolombangara Monarch
Symposiachrus browni
A small black-and-white monarch. Mostly black above with a black head, back, and chest. Note the distinctive white cheek spot and large white wing patch. Note the significant amount of white on undertail. Endemic to Kolombangara, New Georgia, Vangunu, Rendova, and Tetepare, in the southwestern Solomon Islands. Prefers primary forest, but tolerates secondary growth. Occurs up to about 600 meters of elevation. Voice commonly consists of long pulsing whistles or harsh chattering.
Black-rumped Magpie
Pica bottanensis
The black-and-white magpie of the Qinghai-Tibetan plateau. Best identified by range, but overlaps in the far eastern and southern parts of its range with Oriental Magpie; look for Black-rumped’s reduced gloss in plumage and stouter bill. Gives various chattering notes which average hoarser than those of Oriental Magpie. Found in farmland and other semi-open areas, as well as parks and towns.
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