Black Swan vs White-winged Scoter
Cygnus atratus comparé à Melanitta deglandi
Side-by-Side Comparison
| Attribut | Black Swan | White-winged Scoter |
|---|---|---|
| Nom scientifique | Cygnus atratus | Melanitta deglandi |
| Ordre | Anseriformes | Anseriformes |
| Famille | Anatidae | Anatidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 130,0 cm (51.2 in) | — |
| Envergure | 190,0 cm (74.8 in) | 54,0 cm (21.3 in) |
| Poids | 6200,0 g (218.70 oz) | 1647,1666666666667 g (58.10 oz) |
| Régime alimentaire | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Dives for molluscs, crustaceans, and small fish in coastal and inland waters. Favours mussels and … |
| Taille de la couvée | 4-6 | 6-16 |
| 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.
White-winged Scoter
Male produces a soft, whistled note; female gives a harsh, grating call. Similar to Velvet Scoter; the female's rasping call carries across North Pacific bays and coastal inlets.
Geographic Range & Migration
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
White-winged Scoter
Breeds in boreal forest and tundra of interior North America. Winters along Pacific and Atlantic coasts south to California and the Gulf states.
Statut de conservation
Black Swan
White-winged 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
White-winged Scoter
Male is black with conspicuous white secondaries and a white comma-shaped mark below eye; orange-yellow bill with black basal knob. Female dark brownish-black with two pale facial patches and white …
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.
White-winged Scoter
A large diving duck (~1.6 kg) in family Anatidae, distinguished by white secondaries visible in flight. Breeds on freshwater lakes in boreal North America; winters along Pacific and Atlantic coasts. Dives for mussels, clams, and aquatic insects. Least Concern; North American populations remain broadly stable despite some local declines.