Black-headed Duck vs Salvadori's Teal
Heteronetta atricapilla 비교 대상 Salvadorina waigiuensis
Side-by-Side Comparison
| 속성 | Black-headed Duck | Salvadori's Teal |
|---|---|---|
| 학명 | Heteronetta atricapilla | Salvadorina waigiuensis |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 34.7 cm (13.7 in) | 37.2 cm (14.6 in) |
| 체중 | 528.5 g (18.64 oz) | 345.6666666666667 g (12.19 oz) |
| 식성 | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … | Dabbles for seeds and aquatic invertebrates in shallow wetlands; diet broadly omnivorous; invertebrate intake peaks … |
| 산란 수 | 2 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
Salvadori's Teal
Fast-flowing clear mountain streams and rivers at 1,000–3,900 m on New Guinea. Requires clean turbulent water with abundant aquatic invertebrates. Avoids lowland and polluted rivers.
Song & Call Comparison
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.
Salvadori's Teal
A soft, piping whistle from New Guinea mountain streams. Relatively poorly known; call is a gentle, reedy note. Behavior and vocalizations remain incompletely documented.
Geographic Range & Migration
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.
Salvadori's Teal
Breeds across northern Eurasia; winters in tropical Africa, South Asia, and Southeast Asia. Broad Palearctic–Oriental migration.
보전 상태
Black-headed Duck
Salvadori's Teal
How to Tell Them Apart
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.
Salvadori's Teal
Dark brown plumage with fine pale spotting and barring throughout. Head dark brown; underparts barred brown and buff. Yellow bill with dark tip. Legs and feet yellow. Unique highland New …
About These Birds
Black-headed Duck
검은머리오리(Heteronetta atricapilla)는 남아메리카산 약 530g의 소형 잠수 오리로, 오리과의 유일한 탁란성 종이다. 다른 수조류 둥지에 알을 낳는다.
Salvadori's Teal
A small brown torrent-adapted duck with a yellow bill, spotted body, and barred flanks. Endemic to New Guinea's mountain rivers. Often compared to New Zealand's Blue Duck in ecological niche. Inhabits fast-flowing alpine streams. Poorly studied; listed as Vulnerable.