Black Swan vs Black Scoter
Cygnus atratus 비교 대상 Melanitta americana
Side-by-Side Comparison
| 속성 | Black Swan | Black Scoter |
|---|---|---|
| 학명 | Cygnus atratus | Melanitta americana |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | 130.0 cm (51.2 in) | — |
| 날개 폭 | 190.0 cm (74.8 in) | 44.0 cm (17.3 in) |
| 체중 | 6200.0 g (218.70 oz) | 1046.1 g (36.90 oz) |
| 식성 | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Dives for molluscs, particularly mussels and clams, in coastal waters. Takes aquatic insects and plant … |
| 산란 수 | 4-6 | 5-11 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
Black Scoter
Male produces a low, melodious whistle; female gives a harsh, grating call. Closely related to Common Scoter; voice very similar; heard on North American Pacific and Atlantic coasts in winter.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Black Scoter
Breeds in boreal forests and tundra of Alaska and northern Canada. Winters along Pacific and Atlantic coasts south to Baja California and Florida.
보전 상태
Black Swan
Black Scoter
How to Tell Them Apart
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
Black Scoter
Male is pure glossy black throughout with a prominent bright orange-yellow knob at bill base. Female is dark sooty-brown with pale buff cheeks and foreneck contrasting with darker cap and …
About These Birds
Black Swan
검은 백조는 한때 모든 백조가 흰색이라고 믿었던 유럽인들에게 불가능하다고 여겨졌으며, 귀납적 추론 실패의 유명한 철학적 예가 됩니다. 서부 오스트레일리아의 주 새입니다. 검은 백조는 평생 짝 유대를 형성하며 양 부모가 포란과 새끼 양육을 공유합니다.
Black Scoter
대형 해오리로 체장 48–55cm이며, 수컷은 전신이 검은색에 노란색 부리 혹을 갖는다. 북아메리카 북부 습지에서 번식하고 태평양과 대서양 해안에서 월동한다. 잠수하여 연체동물, 갑각류, 수생 곤충을 먹는다. 관심 필요 종이다.