White-winged Duck vs Wandering Whistling-duck
Asarcornis scutulata 비교 대상 Dendrocygna arcuata
Side-by-Side Comparison
| 속성 | White-winged Duck | Wandering Whistling-duck |
|---|---|---|
| 학명 | Asarcornis scutulata | Dendrocygna arcuata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Critically Endangered | Least Concern |
| 체장 | — | — |
| 날개 폭 | 68.3 cm (26.9 in) | 37.2 cm (14.6 in) |
| 체중 | 2950.0 g (104.06 oz) | 779.5 g (27.50 oz) |
| 식성 | Feeds on seeds, plant material, and aquatic invertebrates; dabbles in shallow water; diet varies widely … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 산란 수 | 6-15 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
White-winged Duck
Undisturbed lowland tropical forest near slow rivers, pools, and forest swamps at low elevations in northeastern India, Bangladesh, Myanmar, and Sumatra. Requires large trees with nest cavities near permanent water.
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
White-winged Duck
Critically endangered; extremely rare in wild. Gives low guttural hissing calls and soft wing-beating sounds. Vocalizations in wild scarcely documented given its rarity.
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
White-winged Duck
Breeds in northern Eurasia; winters in sub-Saharan Africa. A classic Palearctic–African migrant with a wide wintering range.
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
보전 상태
White-winged Duck
Wandering Whistling-duck
How to Tell Them Apart
White-winged Duck
Dark brown body with pale spotting on head and neck. Bold white wing patch visible in flight. Yellowish-orange bill; legs orange. Head pale buffish-white speckled brown. Critically endangered SE Asian …
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
White-winged Duck
창백하게 점박이 무늬가 있는 머리, 갈색 몸통, 비행 중 넓은 흰 날개 반점이 있는 큰 어두운 오리입니다. 아시아에서 가장 멸종위기에 처한 오리 중 하나입니다. 남아시아와 동남아시아의 강 근처 미개발 저지대 숲에 서식합니다. 큰 나무 구멍에 둥지를 틉니다. 삼림 벌채와 사냥으로 위협받고 있습니다.
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.