Willow Grouse vs Crested Partridge
Lagopus lagopus 对比 Rollulus rouloul
Side-by-Side Comparison
| 属性 | Willow Grouse | Crested Partridge |
|---|---|---|
| 学名 | Lagopus lagopus | Rollulus rouloul |
| 目 | Galliformes | Galliformes |
| 科 | Phasianidae | Phasianidae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 39.1 cm (15.4 in) | 27.2 cm (10.7 in) |
| 体重 | 595.4166666666666 g (21.00 oz) | 250.5 g (8.84 oz) |
| 食性 | Eats willow and birch buds, catkins, and shoots in winter; berries, seeds, flowers, and insects … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| 产卵数 | 3-14 | 4-6 |
| 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.
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
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.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
保护状况
Willow Grouse
Crested Partridge
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.
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
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。
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.