Spotted Whistling-duck vs White-headed Duck
Dendrocygna guttata 对比 Oxyura leucocephala
Side-by-Side Comparison
| 属性 | Spotted Whistling-duck | White-headed Duck |
|---|---|---|
| 学名 | Dendrocygna guttata | Oxyura leucocephala |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Endangered |
| 体长 | — | — |
| 翼展 | 41.3 cm (16.3 in) | 29.7 cm (11.7 in) |
| 体重 | 677.5 g (23.90 oz) | 705.0 g (24.87 oz) |
| 食性 | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Dives for aquatic invertebrates, seeds, and plant roots in Mediterranean and Central Asian wetlands. Critically … |
| 产卵数 | 10-11 | 3-10 |
| 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.
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.
White-headed Duck
Male produces a mechanical, rapid bill-drumming; female gives a harsh, grating quack. The drumming staccato display is the same pattern as other Oxyura stiff-tails; heard on Eurasian steppe lakes.
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.
White-headed Duck
Breeds in Spain, Turkey, central Asia, and Mongolia. Winters in the Mediterranean, the Middle East, and northern India. Globally endangered.
保护状况
Spotted Whistling-duck
White-headed Duck
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.
White-headed Duck
Male has entirely white head with small black crown patch, rich chestnut-brown body, and large bulbous powder-blue bill. Female is brown with pale whitish face divided by dark streak across …
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。
White-headed Duck
白头硬尾鸭是地中海地区濒危的小型硬尾鸭，雄鸟白色大头、蓝色嘴和竖起的黑色尾羽极具特色；雌鸟褐色，脸颊有深色横纹。繁殖于西班牙、北非、土耳其和中亚，由于湿地破坏、猎捕和与北美草原硬尾鸭的杂交竞争，被列为濒危物种，全球数量估计不足1万只。