Andean Teal vs Wandering Whistling-duck
Anas andium 对比 Dendrocygna arcuata
Side-by-Side Comparison
| 属性 | Andean Teal | Wandering Whistling-duck |
|---|---|---|
| 学名 | Anas andium | Dendrocygna arcuata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 44.8 cm (17.6 in) | 37.2 cm (14.6 in) |
| 体重 | 457.0 g (16.12 oz) | 779.5 g (27.50 oz) |
| 食性 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow coastal and freshwater habitats; diet varies … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 产卵数 | 5-13 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Andean Teal
High-altitude freshwater lakes, marshes, and boggy streams at 2,500–4,500 m in the Andes of Colombia, Ecuador, and Peru. Strongly associated with paramo and subpáramo wetlands.
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
Andean Teal
Male gives a clear, whistled note; female produces a soft quacking series. Subdued vocalizations of this high-altitude Andes teal blend with the wind across paramo lakes.
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.
Geographic Range & Migration
Andean Teal
Breeds in Arctic and sub-Arctic North America; winters along both US coasts, the Gulf of Mexico, and the Great Lakes.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
保护状况
Andean Teal
Wandering Whistling-duck
How to Tell Them Apart
Andean Teal
Brown body with fine dark spotting; head grayish-brown. Yellow bill with darker culmen. Iridescent green speculum with white front border. Legs grayish-orange. Sexes similar. High-altitude Andean specialist.
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.
About These Birds
Andean Teal
安第斯鸭（Anas andium）是一种小型褐色鸭，喙黄色，具绿色翼镜。与黄嘴鸭关系密切，有时被视为其亚种。属鸭科（Anatidae），分布于安第斯山脉高原湿地，特产于该地区。
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。