Andean Avocet

Recurvirostra andina

An elegant, boldly patterned large shorebird of high Andean salt lakes, bogs, and lagoon shores. White head and body contrasting with glossy black upperparts are distinctive even at long range; at closer range note bluish legs and long fine bill with upswept tip. Often in pairs or small groups; feeds while wading in shallows, sweeping its bill through the water. Sexes look similar but female’s bill is more strongly upcurved. Gives noisy calls when agitated, especially near nest.

识别特征

This avocet has a white head, neck, underparts and rump, and dark brown back, wings and tail. It is similar in size but slightly bulkier than the American avocet, at 43–48 cm (17–19 in) in length and 315–410 g (11.1–14.5 oz) in weight. Average body mass is 361 g (12.7 oz), making it likely the heaviest of the Recurvirostridae family. The thin, grey legs are not as long as with other avocet species, but the long thin black bill is upturned at the end. The sexes are similar, and the juvenile plumage is undescribed.<p>The colour pattern is similar to that of the local subspecies Himantopus himantopus melanurus of black-winged stilt, but that bird has very long red legs a white tail and a straight bill.

分类信息

学名
Recurvirostra andina
命名信息
Philippi & Landbeck, 1861
Charadriiformes
Recurvirostridae
Recurvirostra

分布与栖息地

迁徙
Vertical migration

行为

The Andean avocet nests near shallow, preferably alkaline lakes in the Andes, often in small groups. The eggs are laid in at least January.<p>This species is non-migratory, but may move to slightly lower altitudes when not breeding.<p>The Andean avocet forages in shallow water or on mud flats, often sweeping its bill from side to side in water as it seeks its crustacean and insect prey.

保护状况

种群趋势
unknown

照片

分布

鸟叫声

其他鸟类

Black-and-chestnut Eagle

Black-and-chestnut Eagle

Spizaetus isidori

Rare, crested eagle of middle- to upper-elevation cloud forest. Adult’s plumage is mostly black with chestnut on breast and belly. In flight, note large white patches in wings and at base of tail, and chestnut in underwing. Juvenile is amazingly different with dark back, white underparts, and strongly banded wings and tail. Juvenile similar to pale morph Crested Eagle, but wing and tail banding is thinner, and lacks barring on breast and belly. Most likely encountered on sunny mornings, when single birds or pairs may soar high over forested ridges.

Indian Swiftlet

Indian Swiftlet

Aerodramus unicolor

A small, brown, nondescript swift with a shallow tail fork. Upperparts are darker brown than the underparts, while the rump is marginally paler. Very similar otherwise to the more widespread Asian Palm-Swift, except that Indian Swiftlet lacks the latter’s longer, deeply forked tail. Mostly seen in the hills, where it breeds in caves, but can disperse to the plains during monsoons or immediately after summer showers, hawking insects in mixed flocks of swifts. 

Asian Dowitcher

Asian Dowitcher

Limnodromus semipalmatus

Very uncommon large, long-billed shorebird, nearly the size of a godwit, found in coastal mudflats and open marshes. Breeding adult extensively brick-red below, dark and strongly marked with brick-red tones above. Nonbreeding adult grayish brown with a duller, browner bill. Juvenile dark above, with broad gold feather edges, pale below, washed with warm buff or gold tones and with neat dark stipples and chevron-shaped marks. Blackish legs distinguish Asian from Long-billed Dowitcher, which has yellowish-green legs. Blackish or brownish bill of adult Asian differs from bicolored bill of godwits; note that bill of juvenile Asian has pale base.

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Andean Avocet | 鸟镜