White-bellied Seedsnipe
Attagis malouinus
Chunky, generally scarce, rather grouselike bird of bleak moorland, bogs, and rocky slopes above timberline; in winter, sometimes descends to lowland Patagonian steppe, when it can be seen along roadsides. Found in pairs or small groups. Lacey “chainmail” pattern to upperparts is beautifully cryptic, and birds sometimes freeze when alarmed making them more difficult to see. No similar species in range; note the short stout bill and contrasting snowy-white belly. Flight strong and fast; flushes with loud shrieking choruses.
识别特征
The white-bellied seedsnipe is 26.5 to 29 cm (10 to 11 in) long and weighs about 310 to 400 g (11 to 14 oz). The sexes are essentially alike. Males' upperparts and breast have an intricate scallop pattern of buff, cinnamon, and black; their chin and belly are white. Females have a somewhat less sharp division between the breast and belly than males. Juveniles are very similar to adults but are slightly paler and have somewhat heavier scalloping.
分类信息
The white-bellied seedsnipe was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1772, in his Histoire Naturelle des Oiseaux from a specimen collected on the Falkland Islands. The bird was also illustrated in a hand-colored plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name, but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Tetrao malouinus in his catalogue of the Planches Enluminées.<p>The white-bellied seedsnipe is now placed in the genus Attagis that was erected by the French ornithologists Isidore Saint-Hilaire and René Lesson in 1831. Attagis was used for a game bird in Ancient Greek texts. It probably referred to the black francolin (Francolinus francolinus).<p>The specific epithet malouinus refers to the Îles Malouines, the French name for the Falkland Islands. The species is monotypic.
- 学名
- Attagis malouinus
- 命名信息
- (Boddaert, 1783)
- 目
- Charadriiformes
- 科
- Thinocoridae
- 属
- Attagis
分布与栖息地
The white-bellied seedsnipe is found from southern Chile's Magallanes Region and west-central Argentina's Río Negro Province south through Tierra del Fuego to islands off Cape Horn. It has also occurred as a vagrant in the Falkland Islands. In the breeding season it inhabits windswept ridges and moorland characterized by crowberry heath (Empetrum rubrum) and cushion plants. It also occurs along creeks and at small wetlands. Outside that season it mainly inhabits the Patagonian steppe.
- 繁殖区
- SA : high-montane s Chile and Rio Negro (wc Argentina) to Cape Horn
- 非繁殖区
- to plains of se Argentina
- 迁徙
- Vertical migration
行为
The white-bellied seedsnipe breeds between elevations of 650 and 2,000 m (2,100 and 6,600 ft) and moves to lower elevations in the austral winter. There it typically forms flocks of up to about 50 birds and sometimes more.<p>The white-bellied seedsnipe feeds on crowberry and other plant matter but details of its diet are lacking.<p>Little is known about the white-bellied seedsnipe's breeding biology. It lays eggs at least in December and January. Its nest is a shallow scrape in the ground lined with grass, moss, and lichen, and the clutch size is typically four eggs.<p>The white-bellied seedsnipe's flight calls are "an excited-sounding 'tu-whit tu-whit' or 'too-ee too-ee...', given continually."
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Blue-capped Motmot
Momotus coeruliceps
Large motmot of humid forest and edge in tropical lowlands and foothills of northeast Mexico. Perches at all levels, usually in shady areas. Crown solidly blue, rather than blue with a big black central patch as on Lesson’s Motmot, which occurs to the south. The name "motmot" comes from the double-hooting call, which can sound like an owl, and is mainly uttered around dawn. Formerly known as Blue-crowned Motmot.
Tagula Butcherbird
Cracticus louisiadensis
A large, little-known bird of lowland forest on Tagula Island where the only butcherbird. Mainly black plumage with white mark at the shoulder, above and below the base, and also at the tip of the tail. Long, silvery bill with black tip. Trumpet Manucode is a similar size and co-occurs, but Tagula Butcherbird has obvious white markings. Typical butcherbird song of low warbles mixed with bell-like notes and loud “chok!” notes.
Comoro Cuckooshrike
Ceblepyris cucullatus
A medium-sized bird with a gray back, a black hood, and pale underparts. There is an unusual and rare olive morph in which the head and back are olive-gray and the underparts greenish-buff. The juvenile is a drastically different-looking heavily streaked and spotted bird. Found locally in montane forest on the islands of Grand Comoro and Moheli. The most common vocalizations are a descending high-pitched series of soft whistles and a mild, chatty series of “chew” and “tew” notes. Within its small range, most similar to Grand Comoro and Moheli Bulbuls, but easily separated by the paler underparts and lack of an orange bill.
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