Spotted Whistling-duck vs Green Pygmy-goose
Dendrocygna guttata 对比 Nettapus pulchellus
Side-by-Side Comparison
| 属性 | Spotted Whistling-duck | Green Pygmy-goose |
|---|---|---|
| 学名 | Dendrocygna guttata | Nettapus pulchellus |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 41.3 cm (16.3 in) | 33.8 cm (13.3 in) |
| 体重 | 677.5 g (23.90 oz) | 328.75 g (11.60 oz) |
| 食性 | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Eats seeds, aquatic plants, and invertebrates; dabbles in shallow fresh water; diet varies between seasons … |
| 产卵数 | 10-11 | 8-12 |
| Population Trend | — | — |
Habitat Comparison
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.
Green Pygmy-goose
Lily-covered tropical freshwater billabongs, lagoons, and seasonal floodplains in New Guinea and the tropical Top End of the Northern Territory and Queensland, Australia. Highly dependent on aquatic vegetation.
Song & Call Comparison
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.
Green Pygmy-goose
Male gives a high-pitched, melodic two-note whistle; female produces a quiet, nasal grunt. Courtship includes rapid chattering exchanges between paired birds on tropical lagoons.
Geographic Range & Migration
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Green Pygmy-goose
Breeds across northern and central Eurasia; winters in tropical Africa and South Asia.
保护状况
Spotted Whistling-duck
Green Pygmy-goose
How to Tell Them Apart
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.
Green Pygmy-goose
Males have dark green head and neck with white cheek patch; dark back; white underparts; flanks gray-green with fine barring. Females duller with brown cap and white face. White wing …
About These Birds
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。
Green Pygmy-goose
A tiny dark-green duck with pale spotted underparts, a dark cap, and a short stout bill. Endemic to New Guinea and northern Australia. Found on water-lily-covered billabongs and lakes. Feeds by snatching seeds and petals of aquatic plants from the surface.