Dupont's Lark
Chersophilus duponti
The same size as Eurasian Skylark, with a longer and more slender down-curved bill and small head. Cryptically-plumaged upperparts with pale feather edges, a heavily streaked breast, and a white belly. North African race paler still than Iberian birds. Found in natural steppes and semi-deserts, walking with its head up, looking tall. Fiendishly hard to see. Prefers to run when disturbed rather than fly. Melancholic song delivered high in the sky at dusk and dawn.
识别特征
Like most other larks, Dupont's lark is an undistinguished looking species on the ground. It is 17–18 cm long, slim, with a long neck, long legs and a fine slightly curved bill. It has a thin pale crown stripe and a dark-streaked breast. The north-western Dupont's lark of Europe and north-west Africa is mainly brown-grey above and pale below. The south-eastern Dupont's lark, which occupies most of the rest of the African range, has rufous upperparts.<p>Its song is a repeated thin, melancholic whistling phrase, very ventriloquial (difficult to locate) and a nasal whistle given mainly at dawn and dusk or at night.
分类信息
Dupont's lark was originally described by Louis Pierre Vieillot in 1820 and placed in the genus Alauda. It was named for the French naturalist Léonard Puech Dupont, who had collected the species and showed it to Vieillot.<p>Two subspecies are recognized:
- 学名
- Chersophilus duponti
- 命名信息
- (Vieillot, 1824)
- 目
- Passeriformes
- 科
- Alaudidae
- 属
- Chersophilus
分布与栖息地
It breeds across much of northern Africa, from Algeria to Egypt, and in Spain and France. It is a non-migratory resident. It is a species that commonly inhabits chaparral areas. However, it experiences a 3.9% annual population decrease in Spain with a 32.8% decrease from 2008 to 2018, shifting its conservation status to vulnerable on the national level and endangered in the regions of Andalusia and Castile-León.
- 迁徙
- Resident species
行为
This is a very shy species, which runs for cover when disturbed. It is difficult to see while running among vegetation but it sometimes sings, standing upright on the edge of a low bush.<p>This is a bird of open sandy semi-desert or steppe with some grass. Its nest is on the ground, with three or four eggs being laid. Its food is seeds and insects.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Whooper Swan
Cygnus cygnus
Immense swan of frigid northern regions; breeds on the tundra, taiga, and steppe and winters in marshy lakes and wetlands, often in wild areas. Fairly straight neck, short tail, and sloping bill distinct from Mute Swan; told from smaller Bewick’s (Tundra) Swan by larger and pointed yellow patch at base of bill, also lower-pitched and more bugling calls. Juvenile often dingier through first winter than juvenile Bewick’s; juveniles of both usually found with adults as family groups.
Bornean Wren-Babbler
Ptilocichla leucogrammica
Large, stout wren-babbler. Highly dependent on pristine lowland forests; populations now declining and increasingly fragmented across Borneo as that habitat is rapidly deforested. Shy, foraging quietly under dense cover and amongst fallen trunks, usually in pairs or small groups. Best detected by song, a simple but beautiful two-note series of mournful, clear whistles: “doooo-deeee.” If seen well, note whitish face, white-and-black-streaked underparts, brown back, and pot-bellied appearance.
Swamp Harrier
Circus approximans
Long-legged medium-sized raptor with long narrow wings. Adult has varied plumage, but note diagnostic prominent white rump. Juvenile is darker below. Flies slowly and low over open habitats with wings held in shallow V shape. Breeds in reed-beds, and occurs mainly in swamps and wetlands.
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