Snowy Sheathbill
Chionis albus
Unique, stocky, and rather pigeonlike white bird (actually an aberrant shorebird) of Antarctic Peninsula and islands. Migrates north in winter to Tierra del Fuego and southern Argentina, where a few immatures remain year-round at sea lion and penguin colonies. Typically unafraid; walks around boldly to scavenge and even eat feces. Plumage entirely white (somehow remarkably clean given its habits) with a naked pale pinkish face and a pale green and orange bill. Flies strongly with stiff wingbeats; does not alight on water, but will hitch rides on ships.
识别特征
A snowy sheathbill is about 380–410 mm (15–16 in) long, with a wingspan of 760–800 mm (30–31 in). It is pure white except for its pink, warty face; its Latin name translates to "snow white".<p>Sheathbills spend 86% of their day hunting for food and the other 14% resting.
分类信息
The snowy sheathbill was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it in a new genus Vaginalis and coined the binomial name Vaginalis alba. Gmelin based his description on the "white sheath-bill" that had been described and illustrated in 1785 by the English ornithologist John Lathamin his A General Synopsis of Birds . Latham erroneously believed that the bird was found in New Zealand. The type locality was designated as the Falkland Islands by Baron Bradford and Charles Chubb in 1912. The snowy sheathbill is now placed in the genus Chionis that was introduced in 1788 by the German naturalist Johann Reinhold Forster. The genus name is from the Ancient Greek khiōn meaning snow. The specific epithet albus is Latin meaning "white". The species is monotypic: no subspecies are recognised.
- 学名
- Chionis albus
- 命名信息
- (Gmelin, JF, 1789)
- 目
- Charadriiformes
- 科
- Chionidae
- 属
- Chionis
分布与栖息地
The snowy sheathbill lives in Antarctica, the Scotia Arc, the South Orkneys, and South Georgia. Snowy sheathbills living very far south migrate north in winter.
- 繁殖区
- AN : Antarctic Pen. and satellites, South Shetland, South Orkney, and South Georgia is.
- 非繁殖区
- to coastal sc Chile and ec Argentina to Cape Horn and Falkland Is.
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类

Sooty Flycatcher
Artomyias fuliginosa
Unusual small, chunky flycatcher. At a distance looks entirely dark, but a good view reveals a chocolate brown base color and paler brown streaking on the underparts. Has long, pointed wings and looks like a bit like a swallow in flight. Found in rainforest, where it perches up on dead trees, especially at the forest edge and around clearings. Often in small groups. Not very vocal, but does give a quiet, variable song of squeaks, whistles, and trills. Easily separated from other flycatchers by very dark plumage and unusual habits.

Black Turnstone
Arenaria melanocephala
Fairly small, stocky shorebird with short, chisel-like bill. Dark charcoal-colored overall with white belly. In breeding plumage, look for diffuse white eyebrow and small white patch on face. Bold black-and-white pattern is striking in flight. Restricted to the Pacific coast of North America, breeding on grassy tundra in Alaska and wintering regularly to southern Baja California. Found on oceanside rocks and jetties; essentially never seen inland. Typically in small flocks, often mixed with other rock-loving shorebirds like Surfbird. Compared with Ruddy Turnstone, Black Turnstone is, fittingly, much darker: it lacks the rufous tones and bold neck pattern of Ruddy. Also note Black Turnstone's duller legs.

Elliot's Laughingthrush
Trochalopteron elliotii
Gray-brown laughingthrush with pale eyes and a prominent yellow patch on the wings. Can be very tame; a common sight around campsites, rest stops, and tourist attractions throughout much of its range. Garrulous and social, often seen in small to medium-sized flocks. When not scrounging for human-made trash, it forages on the ground and in low undergrowth, sometimes associating with other species in mixed flocks. Adaptable, inhabiting forests, open scrubby areas, and parks.
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