American Oystercatcher
Haematopus palliatus
Large, bulky shorebird with thick red bill. Unmistakable, striking plumage. Exclusively coastal; favors beaches where it feeds on shellfish and other invertebrates; less frequent in rocky areas. Gathers in flocks during migration and winter. Listen for loud yelps and whistles, often in a rapid series when excited. Hybrids with Black Oystercatcher occur locally in southern California and Baja; look for messy spotting where the black hood meets the white belly (sometimes very limited but often quite extensive).
识别特征
The American oystercatcher has distinctive black and white plumage and a long, bright orange beak. The head and breast are black and the back, wings and tail greyish-black. The underparts are white, as are feathers on the inner part of the wing which become visible during flight. The irises are yellow and the eyes have orange orbital rings. The legs are pink. Adults are between 42–52 cm (17–20 in) in length.
分类信息
Genus: Haematopus; Family: Haematopodidae; Order: Charadriiformes.
- 学名
- Haematopus palliatus
- 命名信息
- Temminck, 1820
- 目
- Charadriiformes
- 科
- Haematopodidae
- 属
- Haematopus
分布与栖息地
The American oystercatcher is found on the Atlantic coast of North America from coastal Massachusetts to northern Florida, where it is also found on the Gulf coast, the Caribbean, and south to Brazil, Uruguay and Argentina. It is found also in the Pacific coast of California, Mexico, Central America, Peru, and Chile. In the 19th century they became locally extinct in the lower northeastern United States due to market hunting and egg collecting. After receiving protection under the Migratory Bird Treaty Act, their range extended northward to re-occupy historical habitat in the coastal Northeast. <p>During the breeding season, these birds are found along the Atlantic and Gulf Coasts and from Massachusetts south to Argentina and Chile. In winter, they are found in flocks along the coast from central New Jersey to the Gulf of Mexico. During the breeding season, the American oystercatcher can be found in coastal habitats including sand or shell beaches, dunes, salt marshes, marsh islands, mudflats, and dredge spoil islands made of sand or gravel. During migration and winter, they are found feeding in mud or salt flats that are exposed by the tide. They are also found on shellfish beaches at this time.
- 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
Blue-billed Teal
Spatula hottentota
Small brownish duck with a blue bill, dark cap, and a dark smudge on the pale tan cheek. In flight, look for white, black, and green stripes on the wing. Found on freshwater wetlands, lakes, and rice paddies, at low to moderate elevations. Combination of small size, blue bill, and cheek marking separate it from all other ducks and grebes.
Blue-headed Coucal
Centropus monachus
Huge coucal with a hefty bill. The head often looks black, but can show a blue sheen. Found close to water in marshes, swamps, and wet scrub. Fairly skulking, though occasionally seen in the open. Massive size is obvious in flight. The call is a slow, deep version of the typical coucal descending and accelerating series of “boop” notes. Very similar to Coppery-tailed Coucal, but there is virtually no overlap in range, and Blue-headed is smaller, with a blue sheen to the head. Similar coloration to Senegal Coucal, but much larger.
Yellow-spotted Bush Sparrow
Gymnoris pyrgita
A large, remarkably nondescript sparrow of dry country. Note the pale bill, the white eye-ring, the gray-brown back, the paler underparts, and the white throat. The small yellow throat spot is difficult to see. Found in dry thorn savanna, woodland, and lightly cultivated areas, often in small groups. Similar to Sahel Bush Sparrow, but lacks a distinctive eyebrow mark. Also similar to Pale Rockfinch, but has less patterning on the wing and a clearly defined white throat. The calls are cheerful chirps, often given in a quick series.
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