Snow Pigeon
Columba leuconota
Often seen swirling around rock faces and cliffs in high mountain passes, this highland pigeon usually occurs in pairs or medium-sized flocks. Unlike any other pigeon, with a dark gray head, white neck and underparts, and gray wings with broad brown bars towards the tip. Occasionally visits villages and fields, but skittish and generally less approachable than Hill Pigeon and Rock Pigeon.
识别特征
Snow pigeons have a blackish head contrasting with a white neck collar and white underparts shading into ashy on the abdomen. Their backs are brownish-grey with a white patch on the lower back. Their wings are pale grey with three brown bands. Their black tails have a clear white band in the middle which narrows and curve forward to reach the tip of the outermost tail features. Young birds have narrow, pale buff margins to the feathers of the upper parts and wings. The white of the underparts is sullied with buff.
分类信息
Two subspecies are recognized:
- 学名
- Columba leuconota
- 命名信息
- Vigors, 1831
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Columba
分布与栖息地
They are resident birds in rocky hills of Afghanistan, Bhutan, China, India, Kazakhstan, Myanmar, Nepal, Pakistan, Tajikistan, and Turkmenistan. It is a common bird and has an extremely large range. The population is believed to be stable and for these reasons, the International Union for Conservation of Nature has assessed its conservation status as being of least concern.
- 迁徙
- Complete migrants
行为
They frequent rocky hill sides and sequestered valleys, seen up to the snow line. They frequently feed in the fields during the day, but roost in the cliffs. They are generally shy and wary. Gatherings of 150 or more occur in winter, often in the company of hill pigeons and in some areas with rock doves also.<p>In the summer, they descend to lower heights and are found in pairs or small flocks. They breed in colonies. The nests are placed in crevices or caves in the face of cliffs or ledges of rock. Their nests are untidy interlaced structures made of sticks, grass, straw, feathers, etc. The nests are generally reused every year with minor repairing. Generally, two eggs are laid.<p>They feed on berries, grain, buds, bulbs, seeds, and shoots.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
White-bearded Manakin
Manacus manacus
Fairly common and widespread through much of South America. Males are distinctive with white throat, sharply defined black cap, black back and wings, and grayish belly. Legs bright orange-red. Females are duller olive with paler belly. Note red legs to help separate from other female manakins. Like most manakins, quite plump with a rather short tail and bill. Males gather at display sites in the understory of forest, where they make loud snapping noises with their wings. Also listen for a descending “peew” call. Away from display sites, rather inconspicuous and usually encountered singly, often around a fruiting tree.
Brooks's Leaf Warbler
Phylloscopus subviridis
Small warbler with a small bill and a large-headed appearance. Similar to other leaf warblers, but Brooks’s Leaf Warbler has the combination of a dark bill with a pale base, yellow on face and breast, yellow crown stripe, and at least one white wingbar (often two). Forages in a restless manner in the mid-canopy of spruce and fir forests in the summer and dry scrub forests in the winter. The distinctive song consists of high-pitched “zip-zip-zip-...” notes followed by a dry trill. The call is a short “chee-up” similar to that of a Greenish Warbler.
Desert Cisticola
Cisticola aridulus
Small, pale brown, heavily-streaked cisticola. Plumage is darker in breeding plumage, washed-out in non-breeding plumage. Found in dry, open grasslands, including open stretches within savanna. Song is a mix of high-pitched peeps, scratchy lower notes, and “tic” notes. Extremely similar to Zitting Cisticola. Best distinguished by song, though subtle plumage differences include Desert’s more uniformly blackish tail and slightly streaked rufous rump.
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