Wandering Whistling-duck vs Siberian Scoter
Dendrocygna arcuata 비교 대상 Melanitta stejnegeri
Side-by-Side Comparison
| 속성 | Wandering Whistling-duck | Siberian Scoter |
|---|---|---|
| 학명 | Dendrocygna arcuata | Melanitta stejnegeri |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 37.2 cm (14.6 in) | 53.4 cm (21.0 in) |
| 체중 | 779.5 g (27.50 oz) | 1267.5 g (44.71 oz) |
| 식성 | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for bivalves, crustaceans, and aquatic invertebrates in coastal East Asian waters. Diet similar to … |
| 산란 수 | 6-15 | 6-9 |
| Population Trend | — | — |
Habitat Comparison
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
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.
Siberian Scoter
Male emits a soft, piping whistle; female produces a guttural, grating call. Voice resembles White-winged Scoter; heard during winter on East Asian coasts and large inland seas.
Geographic Range & Migration
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Siberian Scoter
Breeds in boreal forests and tundra of central and eastern Siberia. Winters along the coasts of Japan, Korea, and northeastern China.
보전 상태
Wandering Whistling-duck
Siberian Scoter
How to Tell Them Apart
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.
Siberian Scoter
Male is uniformly black with white secondaries forming wing patch; orange-yellow bill has large black knob at base and pale yellow tip. Female dark brown with paler facial patches and …
About These Birds
Wandering Whistling-duck
황갈색-갈색 몸통, 어두운 갈색 등, 엷은 황갈색 아랫면, 밤색 목깃을 가진 중형 홍따오기. 인도네시아에서 호주·태평양 섬까지 열대 습지에 서식. 매우 사회적이고 유목성. 얕은 담수에서 수면 채이기와 잠수로 채이며 먹이를 구한다.
Siberian Scoter
대형 해오리로 체장 51–60cm이며, 수컷은 검은 전신에 흰 눈 반점과 화려한 오렌지색-노란색 부리를 갖는다. 북동아시아 습지에서 번식하고 동아시아 해안에서 월동한다. 잠수하여 연체동물을 먹는다. 취약한 상태이다.