McKay's Bunting

Plectrophenax hyperboreus

Rare white snowball shrouded in mystery. Nonbreeding birds have buffy fringes to head and back feathers that wear to white by spring. Breeding males almost pure white except for limited black in wings. Breeding females have dark streaking on back. Breeds almost exclusively on St. Matthew Island in the Bering Sea; winters on the coast of western Alaska. Very similar to Snow Bunting but paler, usually with white rump; intermediate birds may be hybrids.

识别特征

This species closely resembles snow bunting in all plumages, but is whiter overall. The breeding plumage of the male is almost purely white, with only small areas of black on the wingtips and tail. The breeding female has a streaked back. Non-breeding birds also have warm brown patches on cheeks, crown, and the sides of the neck. McKay's bunting is larger on average than the snow bunting. It is 18 cm (7.1 in) long and weighs from 38 to 62 g (1.3 to 2.2 oz), with an average of 54.5 g (1.92 oz). Among standard measurements, the wing chord is 10.1 to 12.2 cm (4.0 to 4.8 in), the tail is 6.4 to 7.5 cm (2.5 to 3.0 in), the bill is 1.1 to 1.3 cm (0.43 to 0.51 in) and the tarsus is 2 to 2.4 cm (0.79 to 0.94 in).

分类信息

学名
Plectrophenax hyperboreus
命名信息
Ridgway, 1884
Passeriformes
Calcariidae
Plectrophenax

分布与栖息地

迁徙
Complete migrants

行为

This bunting nests on shingle beaches in hollow drift logs and rock crevices. Winters on coastal marshes, shingle beaches, and agricultural fields. Feeding habits are thought to be similar to snow bunting, which in winter consumes seeds from weeds and grasses, and in summer has a mixed diet of seeds, buds, and insects.

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Rufous Treepie

Rufous Treepie

Dendrocitta vagabunda

A long- and stiff-tailed bird with primarily rusty-brown upperparts and dull orangish underparts. The head, mantle, and neck region are a dull, sooty black. The long graduated tail is pale gray with a wide black terminal band. Note the conspicuous silvery-gray, white, and black patterns on the wings. The blackish-gray bill is stout with a hooked tip. Found in a wide range of habitats from woodlands to scrubby patches, singly or in pairs feeding in the treetops. The call is a loud metallic “krowwiiii kroo.”

Madagascar Partridge

Madagascar Partridge

Margaroperdix madagarensis

Dark, chunky, medium-sized ground-dwelling bird. Distinctive male has a complex and beautiful pattern, while female is plainer and browner. Widespread in open habitats, most often grassland. Shy and inconspicuous; usually seen when explosively flushing from thick cover. Strangely quiet, which is unusual for a partridge. Found in similar habitats to quail and buttonquail, but much larger. When flushing, Madagascar Partridge has louder wings and more powerful flight. 

Nicholson's Pipit

Nicholson's Pipit

Anthus nicholsoni

A large, slender pipit that is usually found in rocky areas. Note the pale eyebrow, long tail, and relatively long bill. Prefers dry, open areas with clumps of vegetation and scattered rocks and boulders, typically on slopes. Calls include squeaky sparrow-like chirps and sweet two-noted whistles. Song is a sequence of plaintive whistles, chirps, and other call-like vocalizations strung together with pauses in between. As with many other pipits, can be frustratingly difficult to identify in the field. Habitat and voice are important clues. Very similar to Mountain Pipit, but less streaky, especially on the breast. Larger than African Pipit, with buffy rather than white outer tail feathers.

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McKay's Bunting | 鸟镜