Black Swan vs Siberian Scoter
Cygnus atratus в сравнении с Melanitta stejnegeri
Side-by-Side Comparison
| Характеристика | Black Swan | Siberian Scoter |
|---|---|---|
| Научное название | Cygnus atratus | Melanitta stejnegeri |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 130,0 cm (51.2 in) | — |
| Размах крыльев | 190,0 cm (74.8 in) | 53,4 cm (21.0 in) |
| Масса | 6200,0 g (218.70 oz) | 1267,5 g (44.71 oz) |
| Питание | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Dives for bivalves, crustaceans, and aquatic invertebrates in coastal East Asian waters. Diet similar to … |
| Размер кладки | 4-6 | 6-9 |
| 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.
Siberian Scoter
Male emits a soft, piping whistle; female produces a guttural, grating call. Voice resembles White-winged Scoter; heard during winter on East Asian coasts and large inland seas.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Siberian Scoter
Breeds in boreal forests and tundra of central and eastern Siberia. Winters along the coasts of Japan, Korea, and northeastern China.
Охранный статус
Black Swan
Siberian 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
Siberian Scoter
Male is uniformly black with white secondaries forming wing patch; orange-yellow bill has large black knob at base and pale yellow tip. Female dark brown with paler facial patches and …
About These Birds
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.
Siberian Scoter
A medium-large sea duck (~1.3 kg) of family Anatidae, closely related to White-winged Scoter and endemic to eastern Siberia and northeastern Asia. Breeds near boreal lakes and winters in coastal seas of East Asia. Feeds by diving for benthic mollusks and crustaceans. Least Concern; recently split from White-winged Scoter as a distinct species.