Magellanic Oystercatcher
Haematopus leucopodus
A boldly patterned large and chunky shorebird of southern South America and Falklands. Favors rocky coastlines and adjacent river mouths, but also frequent on nearby grasslands and lakeshores. Associates readily with other oystercatchers. Told from American Oystercatcher by its glossy black head and upperparts that lack the white shoulder spur. In flight the distinctive upperwing pattern with big white panel on trailing edge separates it from American. At close range, also note the yellow eyering (red on American). Voice is also very distinct from other oystercatchers.
识别特征
The Magellanic oystercatcher has a length between 42 and 46 cm (17 and 18 in). The male weighs around 600 g (21 oz) and the female is a little heavier. This bird has a long, orange beak, yellow eye and eye ring, and yellow legs. The head, breast, back, wings and tail are black and the underparts are white, as are the feathers on the inner part of the wing which can be seen in flight. It is very similar in appearance to the American oystercatcher (Haematopus palliatus), but can be distinguished by the yellow ring of bare skin that surrounds its yellow eye and the white secondary feathers. No other species of oystercatcher has these two features, and it is also the only New World species to have a black rather than a brown back. The call is similar to other oystercatchers, a repeated high-pitched "pee-pee".
分类信息
- 学名
- Haematopus leucopodus
- 命名信息
- Garnot, 1826
- 目
- Charadriiformes
- 科
- Haematopodidae
- 属
- Haematopus
分布与栖息地
This species is native to the southern tip of South America. Its range includes southern Argentina, Tierra del Fuego and other nearby islands, and the Falkland Islands. It is present on South Georgia and the South Sandwich Islands but its status there is unclear. It breeds inland on upland grasslands but lives on the coast outside breeding season.
- 繁殖区
- SA : coastal and inland sc Chile and sc Argentina to Cape Horn and Falkland Is.
- 非繁殖区
- to coasts
- 迁徙
- Complete migrants
行为
When inland during breeding season, the Magellanic oystercatcher feeds largely on earthworms and insect larvae, probing soft ground and mud with its sharp beak. At other times of year when at the coast it forages for mussels and limpets and feeds on crabs and polychaete worms.<p>When disturbed near the nest it engages in several strategies to divert attention from its eggs and chicks. These include false-brooding, when it moves to sit on an imaginary nest site, and tail-flagging, a ritual aggressive display involving raising tail and wings. It also has a distinctive peeping call to warn off intruders.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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A unique, large desert lark. On the ground, plumage is unimpressive with spotted breast and overall sandy tones, but in flight a magnificent white-and-black pattern is exposed. Males are slightly brighter-patterned than females. Bill is long and downcurved. Constantly runs on its long legs. Breeds on sandy and stony plains and low hills. Resident or nomadic. Song is a beautiful ascending series on flutey whistles followed by a descending trill; often given in a dramatic vertical display flight.
Purple-bellied Lory
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A thick-set, short-tailed parrot with green wings, a red body, a black cap, and a deep purple belly. Widespread in natural habitats, but apparently favors coconut plantations. Purple belly separates this species from the very similar White-naped Lory, especially in flight. The similar Black-capped Lory has a large black neck patch and darker purplish black underside. Purple-bellied’s most common call is a harsh nasal “eee-arrr,” unlike the sweet whistle of White-naped Lory.
Lesser Greenlet
Pachysylvia decurtata
Small plain vireo of tropical forest and woodland in lowlands. Usually stays fairly high in trees and likely to be overlooked unless its rather tuneless, monotonously repeated song is learned. Identified by a combination its gray head (in Mexico and Central America) with a diffuse whitish eyering; whitish underparts with a yellowish wash on the sides; and plain olive upperparts. Head of birds from eastern Panama to South America is olive, with a whitish eyering.
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