White-winged Duck vs Black-headed Duck
Asarcornis scutulata 비교 대상 Heteronetta atricapilla
Side-by-Side Comparison
| 속성 | White-winged Duck | Black-headed Duck |
|---|---|---|
| 학명 | Asarcornis scutulata | Heteronetta atricapilla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Critically Endangered | Least Concern |
| 체장 | — | — |
| 날개 폭 | 68.3 cm (26.9 in) | 34.7 cm (13.7 in) |
| 체중 | 2950.0 g (104.06 oz) | 528.5 g (18.64 oz) |
| 식성 | Feeds on seeds, plant material, and aquatic invertebrates; dabbles in shallow water; diet varies widely … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| 산란 수 | 6-15 | 2 |
| 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.
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.
Black-headed Duck
Male gives a soft, raspy peeping note; female produces a muted quack. An obligate brood parasite with reduced vocalizations; subdued calls suit its secretive lifestyle among Argentine reeds.
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.
Black-headed Duck
Resident in southern South America from southern Brazil and Bolivia south to Argentina and Chile. Found on lakes and marshes in open lowlands.
보전 상태
White-winged Duck
Black-headed 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 …
Black-headed Duck
Male has distinctive jet-black head and neck, warm chestnut-brown back, and pale buff underparts; blue-grey bill with red base. Female is streaked brown above with pale supercilium and whitish underparts.
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.
Black-headed Duck
검은머리오리(Heteronetta atricapilla)는 남아메리카산 약 530g의 소형 잠수 오리로, 오리과의 유일한 탁란성 종이다. 다른 수조류 둥지에 알을 낳는다.