Bar-headed Goose vs Spotted Whistling-duck
Anser indicus 对比 Dendrocygna guttata
Side-by-Side Comparison
| 属性 | Bar-headed Goose | Spotted Whistling-duck |
|---|---|---|
| 学名 | Anser indicus | Dendrocygna guttata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 87.6 cm (34.5 in) | 41.3 cm (16.3 in) |
| 体重 | 2288.0 g (80.71 oz) | 677.5 g (23.90 oz) |
| 食性 | Eats aquatic plants, grasses, and roots; filters invertebrates during breeding; forms large flocks on shallow … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 产卵数 | 3-8 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Bar-headed Goose
Breeds on high-altitude lakes and rivers at 4,000–5,000 m in Central Asia (Tibet, Mongolia, Ladakh). Migrates over the Himalayas. Winters on rivers, lakes, and agricultural fields in the Indian subcontinent.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Bar-headed Goose
A nasal, goose-like honking 'wang-wang-wang'. Flocks give persistent calling during high-altitude Himalayan migration — among the highest migrations of any bird species.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Bar-headed Goose
Breeds in high Arctic of Greenland, Canada, and Alaska; winters on rocky coasts of eastern North America and western Europe.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
保护状况
Bar-headed Goose
Spotted Whistling-duck
How to Tell Them Apart
Bar-headed Goose
White head with two distinctive black bars across crown. Yellow-orange bill and legs. Back and wings pale gray; underparts white. Black-tipped primaries. Sexes similar; famed for Himalayan migration.
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Bar-headed Goose
斑头雁以其高空迁徙能力著称，能飞越喜马拉雅山脉，是飞行高度最高的鸟类之一。繁殖于中亚高原湖泊，越冬于印度次大陆。头顶具两道黑色横纹，颈侧有白色条纹，体羽灰白色。以水草和湿地植物为食，常在高海拔湖泊集群繁殖。
Spotted Whistling-duck
斑树鸭是东南亚和西南太平洋的树鸭，分布于印度尼西亚、菲律宾、巴布亚新几内亚及澳大利亚北部。体羽深褐色，胸部和腹部具白色斑点，嘴灰黑色。栖息于热带雨林的湖泊、河流和湿地，以水生植物、种子和无脊椎动物为食，在树洞中营巢。