Red-breasted Goose vs Wandering Whistling-duck
Branta ruficollis 比較対象 Dendrocygna arcuata
Side-by-Side Comparison
| 属性 | Red-breasted Goose | Wandering Whistling-duck |
|---|---|---|
| 学名 | Branta ruficollis | Dendrocygna arcuata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 69.1 cm (27.2 in) | 37.2 cm (14.6 in) |
| 体重 | 1253.25 g (44.21 oz) | 779.5 g (27.50 oz) |
| 食性 | Grazes grasses, seeds, and aquatic plants; introduced to many wetlands; upends in shallow water for … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 一腹卵数 | 3-10 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Red-breasted Goose
Breeds on river-terrace tundra in northwestern Siberia, often near Peregrine or Rough-legged Buzzard nests for protection. Winters on agricultural steppes and lake margins around the Black Sea and Caspian Sea.
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
Red-breasted Goose
A high-pitched, rapid 'kik-kik-kik' call. More vocal during migration; flocks give constant chattering. Considered a more squeaky, high-pitched call than other Branta geese.
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
Red-breasted Goose
Breeds in Arctic and subarctic tundra in North America; winters along both US coasts and interior wetlands south to Central America.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
保全状況
Red-breasted Goose
Wandering Whistling-duck
How to Tell Them Apart
Red-breasted Goose
Unmistakable; vivid chestnut-red patch on face and breast bordered by white stripes. Black crown, back, wings, and belly. White flank stripe and undertail. Compact and striking. Sexes similar.
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
Red-breasted Goose
アカノドガンはロシア北部のツンドラで繁殖し、ルーマニアや中央アジアで越冬する美しいガンです。赤褐色の喉と頬、白と黒の模様が特徴的です。草地や農地で採食します。絶滅危惧種に指定されており、越冬地での生息地破壊が主な脅威です。
Wandering Whistling-duck
ワンデリングウィスリングダックは東南アジアからオーストラリアにかけて分布するツリーダックです。栗色の羽毛と長い首が特徴で、群れで移動します。湿地、稲田、水草に覆われた湖に生息し、水草、種子、藻類を採食します。