Wandering Whistling-duck vs Andean Duck
Dendrocygna arcuata 对比 Oxyura ferruginea
Side-by-Side Comparison
| 属性 | Wandering Whistling-duck | Andean Duck |
|---|---|---|
| 学名 | Dendrocygna arcuata | Oxyura ferruginea |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 37.2 cm (14.6 in) | 31.4 cm (12.4 in) |
| 体重 | 779.5 g (27.50 oz) | 800.75 g (28.25 oz) |
| 食性 | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for aquatic invertebrates and plant seeds in Andean lakes and marshes. Diet similar to … |
| 产卵数 | 6-15 | 6-10 |
| Population Trend | — | — |
Habitat Comparison
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Song & Call Comparison
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Andean Duck
Male gives a rapid, staccato drumming display call; female produces a nasal, quacking rattle. The male's mechanical drumming is similar to Ruddy Duck; echoes across Andean high-altitude lakes.
Geographic Range & Migration
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Andean Duck
Resident in the Andes of Colombia, Ecuador, Peru, Bolivia, and northwestern Argentina. Found on high-altitude lakes above 3,000 m.
保护状况
Wandering Whistling-duck
Andean Duck
How to Tell Them Apart
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
Andean Duck
Male is dark chestnut-rufous overall with black head, white cheeks tinged grey, and deep blue bill. Female is dark brownish with pale cheeks divided by a dark bar; similar to …
About These Birds
Wandering Whistling-duck
流苏树鸭分布于东南亚至澳大利亚北部的热带地区，包括印度尼西亚、菲律宾和新几内亚。以翼上具浅色流苏状羽毛为特征。体羽褐色，具栗褐色和白色斑纹。栖息于热带淡水湖泊和沼泽，以水生植物和无脊椎动物为食，常在水中觅食，也在树洞中营巢。
Andean Duck
安第斯硬尾鸭（有时作为北美草原硬尾鸭亚种处理）是南美洲安第斯高原特有的小型硬尾鸭。雄鸟头部黑色，嘴部蓝色，体羽棕红色；雌鸟褐色。分布于哥伦比亚至阿根廷的高原湖泊，善深潜，以水生植物和无脊椎动物为食，极少飞行。