Altai Snowcock
Tetraogallus altaicus
A burly brown inhabitant of high mountain passes, meadows, and plains, ranging from the low foothills up to isolated snowy peaks. The only snowcock throughout most of its range; minimal overlap with Himalayan Snowcock in far northwestern China and extreme northeastern Kazakhstan. Heavy contrast between the pale brown head and neck, white belly, and dark-brown-and-white back are unmistakable even from a distance and in poor weather conditions.
识别特征
The Altai snowcock is a plump, partridge-like bird. While most snowcocks are similar in size, the Altai might be the largest species with a length of around 57 to 61 cm (22 to 24 in) and a mean body mass of approximately 2.54 kg (5.6 lb) in females and 3 kg (6.6 lb) in males. The head and neck are slatey-grey and there is a partial dark collar at the base of the neck. The upperparts are grey with white spots and the tail is black. The chin, breast and belly are white. The throat has a breastband of grey with patches of black. The primary and secondary feathers are black, the former having white bases which show as a white flash in flight. The beak is yellowish brown and the legs and feet reddish brown.
分类信息
The Altai snowcock was first described by Frederic Gebler in 1836. He was a doctor and naturalist who lived in the Altai region for forty years and named many previously unknown species. There are two subspecies, Tetraogallus altaicus altaicus and Tetraogallus altaicus orientalis.
- 学名
- Tetraogallus altaicus
- 命名信息
- (Gebler, 1836)
- 目
- Galliformes
- 科
- Phasianidae
- 属
- Tetraogallus
分布与栖息地
The Altai snowcock is native to the mountain ranges of western Mongolia and southwestern Siberia. Its range includes in Russia the mountainous regions near Abakan, Sayan Mountains and the Tannu-Ola Mountains; and in Mongolia, the Mongolian Altai, the Govi-Altai, the Khangai Mountains, and the mountains east of Lake Khuvsgul. The habitat is open mountainside above the tree line at altitudes usually ranging between 2,000 and 3,600 metres (6,600 and 11,800 ft).
- 迁徙
- Resident species
行为
The Altai snowcock feeds on buds, shoots, roots, berries and insects and it also occasionally eats small rodents. About forty different species of plants have been recorded to be part of the diet.
保护状况
Populations of Altai snowcock are believed to be decreasing as a result of over-hunting and degradation of their habitat. However, in its Red List of Threatened Species, the IUCN lists this species as being of "Least Concern" because it has a wide distribution over an estimated 819,000 square kilometres (316,000 sq mi) and the number of mature birds is over 10,000 and not decreasing at such a rate as would justify their inclusion in a more vulnerable category.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
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Micrastur buckleyi
Elusive falcon of lowland and foothill rainforest east of the Andes. Note black upperparts, white underparts, white hindcollar, and dull yellow face. Female may show white spots on wings. Immature is barred underneath with brownish nape. Adult is very similar to pale morph Collared Forest-Falcon but slightly smaller; ID is best confirmed by voice. Typical song of Buckley’s is “kawah, koh”, sometimes followed by a lower “koh” note. Usually stays inside forest and is infrequently seen.
Cuckoo-roller
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A large, big-headed, short-legged bird that is very odd in almost every way, especially in the position of the eye near the top of the head. Males have a pale head and underparts and a colorful iridescent back. Females are rufous brown with heavy spotting below. Found in all forest types, and sometimes in adjacent scrub and plantations. Often perches and feeds in the canopy, though rarely on an emergent branch. Males and pairs frequently make soaring display flights, constantly giving incredibly loud and persistent three-part wailing calls. Much larger than Broad-billed Roller, with a dark bill. Looks raptor-like, but has a huge head, small bill, and less powerful wingbeats.
Reischek's Parakeet
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