Tibetan Snowcock
Tetraogallus tibetanus
Although its loud, hoarse calls can often be heard echoing in the high mountain slopes it calls home, this large game bird can often prove difficult to see. Extremely well-camouflaged on rocky slopes and in boulder fields. Gray head is marked with a comma-shaped white brow and a bright orange patch of skin behind the eye. Back is brown with thick black-and-white striping and the underparts are snowy-white with thin black stripes.
识别特征
Smaller than Himalayan snowcock, this species has a grey head and neck with a white patch behind the eye and above the dark cheek. Chin, throat and breast are white, with two grey bands on the breast. Grey wing coverts and tertials have a white trim. The secondaries have a broad white trailing edge that forms a wing band. Underparts are white with black streaks on flanks and belly. The tail is rufous brown and the undertail coverts are black. Legs and beaks are reddish. Sexes are similar, but female has buff in postocular patch, blackish and buff marks on sides of head, neck and breast-band, and lacks the tarsal spurs of the male.
分类信息
The widely distributed populations show variations in plumage and about five subspecies have been designated:<p>Some races such as tschimenensis and yunnanensis are not widely recognized, the former included in the nominate form.The genetic divergence of these populations has been attributed to glacial cycles associated with the uplift of the Tibetan plateau.
- 学名
- Tetraogallus tibetanus
- 命名信息
- Gould, 1854
- 目
- Galliformes
- 科
- Phasianidae
- 属
- Tetraogallus
分布与栖息地
Tibetan snowcock are found on alpine pastures stony ridges above the tree line in the Pamirs of Tajikistan, Himalayas (from Ladakh to Arunachal Pradesh), Tibet, Pakistan and China. They are found in lower altitudes during winter or when there is heavy snowfall. In parts of its range there appears to be a clear separation of the distribution of this and the Himalayan snowcock while in others they appear to overlap.<p>Since the Tibetan snowcock has a large distribution range and no visible declines in population, it has been considered a species of "least concern" by the IUCN.
- 迁徙
- Vertical migration
行为
Migration pattern: Vertical migration.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
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