Barnacle Goose vs Wandering Whistling-duck
Branta leucopsis 对比 Dendrocygna arcuata
Side-by-Side Comparison
| 属性 | Barnacle Goose | Wandering Whistling-duck |
|---|---|---|
| 学名 | Branta leucopsis | Dendrocygna arcuata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 76.4 cm (30.1 in) | 37.2 cm (14.6 in) |
| 体重 | 1685.0 g (59.44 oz) | 779.5 g (27.50 oz) |
| 食性 | Large white swan grazing aquatic plants and grasses; upends for submerged vegetation; supplements diet with … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 产卵数 | 2-9 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Barnacle Goose
Breeds on inaccessible Arctic cliff ledges in Greenland, Svalbard, and Novaya Zemlya. Winters on coastal saltmarshes, pastures, and estuaries in northwestern Europe, particularly Scotland and Ireland.
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
Barnacle Goose
A rapid, high-pitched barking 'uk-uk-uk' given rapidly in flocks. Higher-pitched and more rapid than Canada Goose. Migrating flocks create a constant excited barking chorus.
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
Barnacle Goose
Breeds in Arctic tundra of Alaska and Canada; winters on the Pacific and Atlantic coasts of the United States and northern Mexico.
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
Barnacle Goose
Wandering Whistling-duck
How to Tell Them Apart
Barnacle Goose
Striking black, white and gray pattern. White face and forehead; black crown, neck, and upper breast. Gray back with black and white barring. White underparts. Black tail. Sexes similar; elegant …
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
Barnacle Goose
白颊黑雁是北极雁类，繁殖于格陵兰、斯匹次卑尔根和俄罗斯新地岛，越冬于英国、爱尔兰及西欧北海沿岸。头颈黑色，脸白色，体羽灰黑色带细横纹，腹部白色。以草地和农田植物为食。在中世纪，人们误以为其从藤壶中孵化而来，故又称藤壶雁。
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。