Eastern Spot-billed Duck vs Trauerschwan
Anas zonorhyncha verglichen mit Cygnus atratus
Side-by-Side Comparison
| Merkmal | Eastern Spot-billed Duck | Trauerschwan |
|---|---|---|
| Wissenschaftlicher Name | Anas zonorhyncha | Cygnus atratus |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 130,0 cm (51.2 in) |
| Flügelspannweite | 53,6 cm (21.1 in) | 190,0 cm (74.8 in) |
| Gewicht | 1017,5 g (35.89 oz) | 6200,0 g (218.70 oz) |
| Ernährung | Eats fish, aquatic invertebrates, and amphibians; dives in freshwater rivers; serrated bill grips prey; fish … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Gelegegröße | 7-9 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eastern Spot-billed Duck
Freshwater lakes, rivers, marshes, and rice paddies in northeastern Asia from eastern Russia and Siberia through China, Korea, and Japan. Winters in southern China and southern Japan.
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Eastern Spot-billed Duck
Female produces a loud, descending quacking series; male gives a low, nasal grunt. Vocalizations closely resemble the Indian Spot-billed Duck; pairs call antiphonally on East Asian wetlands.
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.
Geographic Range & Migration
Eastern Spot-billed Duck
Found in wetlands across Southeast Asia, from India to China, Vietnam, and Indonesia. Largely resident; local seasonal movements.
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Erhaltungsstatus
Eastern Spot-billed Duck
Trauerschwan
How to Tell Them Apart
Eastern Spot-billed Duck
Brown body with pale buff face and throat; dark crown and eye stripe. Yellow-tipped black bill lacking the red spot of Indian Spot-billed Duck. Iridescent green speculum with white border. …
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
About These Birds
Eastern Spot-billed Duck
A large brown dabbling duck with a yellow-tipped black bill, without the red spot of its Indian relative, and a green speculum. Found across northeastern Asia. Partially migratory; breeds in northern China, Korea, and Siberia; winters farther south and east.
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.