West Indian Whistling-duck vs Spotted Whistling-duck
Dendrocygna arborea 比較対象 Dendrocygna guttata
Side-by-Side Comparison
| 属性 | West Indian Whistling-duck | Spotted Whistling-duck |
|---|---|---|
| 学名 | Dendrocygna arborea | Dendrocygna guttata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 51.3 cm (20.2 in) | 41.3 cm (16.3 in) |
| 体重 | 1030.0 g (36.33 oz) | 677.5 g (23.90 oz) |
| 食性 | Eats grasses, sedges, and grains; migratory goose foraging in Arctic tundra in summer; overwinters on … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 一腹卵数 | 4-16 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
West Indian Whistling-duck only
Spotted Whistling-duck only
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.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
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.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
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.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
保全状況
West Indian Whistling-duck
Spotted Whistling-duck
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. …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
West Indian Whistling-duck
キューバンウィスリングダックはカリブ海の大小アンティル諸島に固有のツリーダックです。大型で全身が褐色、腹の斑点が特徴的です。ヤシ林の近くの湿地や稲田に生息し、ヤシの実や水草を採食します。生息地の破壊と狩猟により個体数が減少しています。
Spotted Whistling-duck
スポッテドウィスリングダックはインドネシア、フィリピン、パプアニューギニアに分布するツリーダックです。白い斑点のある褐色の羽毛が特徴で、夜間に特徴的な笛のような声でさえずります。熱帯の湿地、稲田、マングローブ林に生息し、草の種子や水草を採食します。