West Indian Whistling-duck vs Mute Swan
Dendrocygna arborea เปรียบเทียบกับ Cygnus olor
Side-by-Side Comparison
| คุณสมบัติ | West Indian Whistling-duck | Mute Swan |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Dendrocygna arborea | Cygnus olor |
| อันดับ | Anseriformes | Anseriformes |
| วงศ์ตระกูล | Anatidae | Anatidae |
| สถานะการอนุรักษ์ | Near Threatened | Least Concern |
| ความยาว | — | 152.0 cm (59.8 in) |
| กว้างปีก | 51.3 cm (20.2 in) | 235.0 cm (92.5 in) |
| น้ำหนัก | 1030.0 g (36.33 oz) | 11000.0 g (388.01 oz) |
| อาหาร | 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 … |
| จำนวนไข่ | 4-16 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
West Indian Whistling-duck only
Mute Swan only
ไม่มี
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.
สถานะการอนุรักษ์
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
A large dark whistling-duck with brown and black plumage, a pale face, and chestnut underparts with dark streaks. Endemic to the Caribbean. The largest native duck in the West Indies; listed as Vulnerable due to hunting and habitat loss. Roosts communally in palms and forest trees.
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.