Trauerschwan vs Coscoroba Swan
Cygnus atratus verglichen mit Coscoroba coscoroba
Side-by-Side Comparison
| Merkmal | Trauerschwan | Coscoroba Swan |
|---|---|---|
| Wissenschaftlicher Name | Cygnus atratus | Coscoroba coscoroba |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 130,0 cm (51.2 in) | — |
| Flügelspannweite | 190,0 cm (74.8 in) | 84,2 cm (33.1 in) |
| Gewicht | 6200,0 g (218.70 oz) | 4200,0 g (148.15 oz) |
| Ernährung | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Eats seeds, aquatic plants, and invertebrates; dabbles and upends in shallow water; diet more invertebrate-heavy … |
| Gelegegröße | 4-6 | 4-9 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Coscoroba Swan
Freshwater lakes, marshes, lagoons, and flooded grasslands from southern Brazil through Uruguay, Chile, and Argentina to Tierra del Fuego. Partially migratory; moves northward in winter. Nests in reedy margins.
Song & Call Comparison
Trauerschwan
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.
Coscoroba Swan
A bugling, honking 'coscoroba' call — giving the species its onomatopoeic name. Loud and far-carrying. Less commonly heard than northern hemisphere swans.
Geographic Range & Migration
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Coscoroba Swan
Breeds in western North American prairies and parklands; winters in California, the Southwest, and northern Mexico.
Erhaltungsstatus
Trauerschwan
Coscoroba Swan
How to Tell Them Apart
Trauerschwan
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
Coscoroba Swan
Entirely white plumage except black wingtips visible in flight. Bright red bill and red legs and feet. Red eye-ring. More goose-like than true swans. Juvenile has brownish wash. Sexes similar.
About These Birds
Trauerschwan
Der Trauerschwan galt Europäern, die glaubten, alle Schwäne seien weiß, einst als unmöglich, was ihn zu einem berühmten philosophischen Beispiel für das Scheitern induktiver Schlussfolgerungen machte. Er ist das Wappentier von Western Australia. Trauerschwäne gehen lebenslange Paarbindungen ein, und beide Elternteile teilen sich das Brüten und die Aufzucht der Jungvögel.
Coscoroba Swan
The smallest swan and the only member of its genus, differing from true swans with a more goose-like head, red-pink bill and legs, and all-white plumage with black wingtips. Found in southern South America. Swims gracefully and grazes shoreline vegetation. Loud coscoroba call is distinctive.