West Indian Whistling-duck vs Mute Swan
Dendrocygna arborea 对比 Cygnus olor
Side-by-Side Comparison
| 属性 | West Indian Whistling-duck | Mute Swan |
|---|---|---|
| 学名 | Dendrocygna arborea | Cygnus olor |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | 152.0 cm (59.8 in) |
| 翼展 | 51.3 cm (20.2 in) | 235.0 cm (92.5 in) |
| 体重 | 1030.0 g (36.33 oz) | 11000.0 g (388.01 oz) |
| 食性 | Eats grasses, sedges, and grains; migratory goose foraging in Arctic tundra in summer; overwinters on … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| 产卵数 | 4-16 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
West Indian Whistling-duck
Freshwater lakes, mangrove swamps, palm savannas, and forested wetlands in the Greater and Lesser Antilles. Nests in palm crowns and hollow trees. Highly dependent on Caribbean wet forests and freshwater lagoons.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
West Indian Whistling-duck
A loud, 3-syllable whistle 'whee-whee-whee'. The NT conservation status reflects population pressures. Less commonly heard than its more abundant whistling-duck relatives.
Mute Swan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Geographic Range & Migration
West Indian Whistling-duck
Found in grassy wetlands and floodplains of Madagascar. Non-migratory and endemic to the island's eastern marshes.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
保护状况
West Indian Whistling-duck
Mute Swan
How to Tell Them Apart
West Indian Whistling-duck
Dark brown upperparts; head and neck dark with pale sides. Flanks black with bold white spots. Breast dark brown; belly blackish with white flank streaks. Long dark legs. Largest Dendrocygna. …
Mute Swan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
About These Birds
West Indian Whistling-duck
西印度树鸭是加勒比海地区特有的树鸭，主要分布于古巴、多明尼加、海地和巴哈马。以树为栖，常在红树林和棕榈林中栖息。体羽深褐色，腹部有黑色斑点，面部灰白色。以棕榈果实、水生植物和谷物为食。由于栖息地丧失和猎捕，被列为易危物种。
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.