Willow Grouse vs Altai Snowcock
Lagopus lagopus 对比 Tetraogallus altaicus
Side-by-Side Comparison
| 属性 | Willow Grouse | Altai Snowcock |
|---|---|---|
| 学名 | Lagopus lagopus | Tetraogallus altaicus |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 39.1 cm (15.4 in) | 56.9 cm (22.4 in) |
| 体重 | 595.4166666666666 g (21.00 oz) | 2770.0 g (97.71 oz) |
| 食性 | Eats willow and birch buds, catkins, and shoots in winter; berries, seeds, flowers, and insects … | Feeds on alpine grasses, seeds, berries, and shoots; digs for roots and bulbs in Altai … |
| 产卵数 | 3-14 | 4-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Willow Grouse
Loud, laughing 'kow-kow-kow-karrr' cackle from males on tundra; raucous and carrying. Alarm is a sharp repetitive 'kek'. Female gives low clucks near nest; male produces barking territorial call.
Altai Snowcock
Loud, ringing whistled 'whi-WHEEE' echoing across Altai alpine slopes; deeper than Tibetan Snowcock due to larger size. Alarm is rapid barking. Calls at dawn from rocky ridgelines.
Geographic Range & Migration
Willow Grouse
Circumpolar breeder in Arctic and boreal tundra of North America, Europe, and Asia. Winters south to temperate grasslands and shrubland.
Altai Snowcock
Resident of alpine rocky slopes and grassy hillsides in the Altai and Sayan mountains of Russia, Kazakhstan, and western Mongolia, at 2,000–4,000 m.
保护状况
Willow Grouse
Altai Snowcock
How to Tell Them Apart
Willow Grouse
Winter: entirely white except black tail; summer male: rufous-chestnut head and breast, white belly and wings; red eye-comb; feathered white feet year-round. Seasonal plumage change is pronounced.
Altai Snowcock
Largest snowcock; grey-brown upperparts with buff streaks; white underparts with grey breast; rufous necklace streaks on lower neck; white outer tail in flight; whitish face with dark ear patch. Sexes …
About These Birds
Willow Grouse
柳雷鸟（约500克）是一种松鸡科鸟类，冬季换上白色羽毛以适应积雪生境。广布于北极和亚北极苔原、北方林地和英国沼泽。以柳树、桦树嫩枝和浆果为食。无危；种群数量通常随旅鼠数量周期性波动，某些地区因气候变化而受到影响。
Altai Snowcock
The largest snowcock (~2.77 kg), family Phasianidae, of alpine scree and subalpine meadows in the Altai and Tian Shan ranges of Central Asia. Heavily built, grey and white with rusty-brown markings. Feeds on roots, bulbs, and alpine plants. Forms small flocks outside breeding season. Least Concern.