Whooper Swan vs Black-headed Duck
Cygnus cygnus 비교 대상 Heteronetta atricapilla
Side-by-Side Comparison
| 속성 | Whooper Swan | Black-headed Duck |
|---|---|---|
| 학명 | Cygnus cygnus | Heteronetta atricapilla |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 116.4 cm (45.8 in) | 34.7 cm (13.7 in) |
| 체중 | 10350.0 g (365.09 oz) | 528.5 g (18.64 oz) |
| 식성 | Dabbling duck feeding on seeds, aquatic insects, and plant material; forages in shallow wetlands; diet … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| 산란 수 | 2-12 | 2 |
| Population Trend | — | — |
Habitat Comparison
Whooper Swan
Breeds on boreal and subarctic lakes and boggy pools from Iceland and Scandinavia across northern Eurasia to Siberia. Winters on large lakes, estuaries, rivers, and agricultural fields in northwestern Europe and eastern Asia.
Song & Call Comparison
Whooper Swan
A loud, ringing 'wh-OOH-wh-OOH' bugle. Less high-pitched than Trumpeter; similar to Tundra Swan but deeper. Pairs call in musical antiphony. Carries very far over water.
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
Whooper Swan
Breeds in Arctic tundra from Siberia to western Canada; winters along the Pacific coast from British Columbia to Mexico.
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
Whooper Swan
Black-headed Duck
How to Tell Them Apart
Whooper Swan
All-white plumage. Long yellow bill with large wedge-shaped yellow patch extending past nostrils, contrasting with black tip. Long flat head profile. Holds neck erect and straight. Juveniles pale gray-brown.
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
Whooper Swan
긴 목을 가진 대형 흰 고니로 콧구멍까지 뻗은 큰 노란 쐐기 형태의 노란흑 부리 무늬가 특징. 핀란드의 국조. 나팔 소리 같은 큰 울음소리로 운다. 유라시아 아북극에서 번식하며 서북유럽·동아시아에서 월동.
Black-headed Duck
검은머리오리(Heteronetta atricapilla)는 남아메리카산 약 530g의 소형 잠수 오리로, 오리과의 유일한 탁란성 종이다. 다른 수조류 둥지에 알을 낳는다.