Sharpe's Longclaw
Macronyx sharpei
A small, pretty member of the pipit family. Note the yellow underparts, the breast band of black streaks, and the scaly brown upperparts. Males and females are similar, but females are duller. The white edges of the tail are conspicuous in weak, fluttering flight. Found on the ground in montane grassland, often in wet areas. Similar to Yellow-throated Longclaw, but there is little overlap in range, and Sharpe’s is separated by being much smaller and having a streaky rather than solid black breast band. Brownish immatures can be confused with pipits, but show some pale yellow below. The song is a series of musical whistles in an up-and-down pattern, given from a perch or in flight. The calls include a sharp “siit” and a longer, metallic “chweee.”
分类信息
Sharpe's longclaw was described by the English ornithologist Frederick John Jackson in 1904 from specimens collected in the Mau Plateau area of Kenya. He coined the binomial name Macronyx sharpei. Both the common name and the specific epithet honour the English ornithologist and museum curator Richard Bowdler Sharpe.<p>The Sharpe's longclaw is a member of the family Motacillidae, which includes the pipits and wagtails. Some ornithologists place the species with the yellow-breasted pipit in the separate genus Hemimacronyx. The two species are closely related and form a superspecies. This genus, along with the golden pipit in the genus Tmetothylacus and the longclaws form an exclusively African clade within the family, separate from the true pipits in the genus Anthus and the wagtails.
- 学名
- Macronyx sharpei
- 命名信息
- Jackson, FJ, 1904
- 目
- Passeriformes
- 科
- Motacillidae
- 属
- Macronyx
分布与栖息地
The Sharpe's longclaw is found in the highlands of west and central Kenya. It has a restricted distribution, occurring on the northern slopes of Mount Kenya, the southern slopes of the Aberdares, on the Gishu, Mau and Kinangop Plateaus around the Rift Valley, and the Kenyan slopes of Mount Elgon (possibly the Ugandan slopes as well).<p>The natural habitat of the species is open treeless grassland with short and often tussocky grasses. It ranges between 1,850 and 3,400 m (6,070–11,150 ft) in altitude, although more commonly below 2,800 m (9,200 ft). It occurs at higher altitudes than the yellow-throated longclaw, with little overlap between the ranges of the two species. It is generally non-migratory, but will travel short distances when its habitat becomes too dry.
- 迁徙
- Resident species
行为
The Sharpe's longclaw feeds on insects, particularly grasshoppers and beetles. Other invertebrates are taken as well. Within its range it has a higher feeding rate in grasslands with tussocks. The species forages alone or in pairs, sometimes in small family groups.<p>The Sharpe's longclaw is a monogamous and solitary breeder that defends a territory. The breeding season is during or after the rains, from March to June, September to October and in December. The species has a brief aerial breeding display, where the bird flies up and then drops, singing rapidly as it drops. The nest is a well-made cup of dried grass lined with roots and placed near the ground at the base of a grass tussock or under a shrub or plant. Between two and three eggs are laid.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Desert Finch
Rhodospiza obsoleta
This subtly handsome finch is unique in its range; warm sandy brown with bright pink and silver flashes in the wings. Sexes are similar, but the male boasts a restricted black mask extending from the front of the eye to the base of the stout charcoal-black bill, which the female lacks. Not restricted to deserts but generally does prefer dry, open areas in middle to high altitude regions. Frequents villages, towns, and even cities. Gives a tumbling series of random-sounding notes, usually with a rather hoarse, buzzy quality. Calls include “chip” and “chink” notes and buzzy wheezes.
Whooping Motmot
Momotus subrufescens
Large motmot of lowland forest and edges from eastern Panama to northwestern South America. Green above and warm rufous below, with a black mask bordered by a dazzling cerulean crown. The crown is not solidly blue, but instead has a circular black patch in the middle as if it’s wearing a yarmulke. Like most other motmots, has conspicuous tail racquets. In typical motmot fashion, perches quietly for long periods of time anywhere from the understory to the canopy, occasionally flicking its tail side to side. Gives a low single “whoop” call.
Ring-necked Duck
Aythya collaris
A relatively small diving duck with a tall peaked crown. Males are handsome with glossy black head and back, clean gray sides, and a brighter white spur on the side. Females are grayish-brown, often with a paler patch at the base of the bill and a white eyering. Both sexes have a white band near the tip of gray bill. Also note gray, not white, wingstripe in flight. Usually favors small bodies of water, such as beaver ponds and cattail marshes, but also occurs on larger lakes, rivers, and bays. Can be found in mixed flocks with other diving ducks, although usually in smaller numbers than scaup. Compare with both species of scaup and Redhead (especially females).
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