Kelp Goose vs Wandering Whistling-duck
Chloephaga hybrida 对比 Dendrocygna arcuata
Side-by-Side Comparison
| 属性 | Kelp Goose | Wandering Whistling-duck |
|---|---|---|
| 学名 | Chloephaga hybrida | Dendrocygna arcuata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 71.6 cm (28.2 in) | 37.2 cm (14.6 in) |
| 体重 | 2735.0 g (96.47 oz) | 779.5 g (27.50 oz) |
| 食性 | -- | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 产卵数 | 3-7 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Kelp Goose
Rocky wave-washed shores, sea channels, and kelp-fringed coasts of Patagonian Chile and Argentina south to Tierra del Fuego, and the Falkland Islands. Strictly coastal; almost never moves inland.
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
Kelp Goose
A loud, nasal 'honk'. Male is mostly white and gives sharper calls; female is dark and gives softer, lower honks. Coastal Patagonian and Falklands habitat; highly vocal.
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
Kelp Goose
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
Kelp Goose
Wandering Whistling-duck
How to Tell Them Apart
Kelp Goose
Extreme dimorphism. Males entirely white with yellow bill and legs. Females dark brown barred white overall; yellow legs. Coastal species of rocky shores. Sexes so different they were once considered …
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
Kelp Goose
洛岛雁是分布于南美洲南端麦哲伦地区及福克兰群岛的沿海雁类。体型中等，雄鸟头颈白色，体羽灰白色；雌鸟褐色带黑色横纹。主要栖息于岩质海岸，以潮间带海藻和草地植物为食。该物种有两个亚种，福克兰群岛亚种数量较多且相对稳定。
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。