Trauerschwan vs Crested Duck
Cygnus atratus verglichen mit Lophonetta specularioides
Side-by-Side Comparison
| Merkmal | Trauerschwan | Crested Duck |
|---|---|---|
| Wissenschaftlicher Name | Cygnus atratus | Lophonetta specularioides |
| 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) | 53,8 cm (21.2 in) |
| Gewicht | 6200,0 g (218.70 oz) | 941,3833333333333 g (33.21 oz) |
| Ernährung | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Feeds on seeds and aquatic invertebrates; dabbles in ponds and marshes; diet more invertebrate-heavy in … |
| Gelegegröße | 4-6 | 5-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Crested Duck
Fast-flowing Andean rivers, lakes, and puna wetlands from sea level to 4,500 m in Peru, Bolivia, Chile, Argentina, and the Falkland Islands. Occupies both coastal and high-altitude wetland habitats.
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.
Crested Duck
Produces a harsh, rattling call and loud hissing alarm notes. Both sexes vocalize with grating, nasal croaking sounds echoing across Andean rocky shores and rivers.
Geographic Range & Migration
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Crested Duck
Breeds across Eurasia; winters in sub-Saharan Africa. One of the most abundant Palearctic ducks on the African wintering grounds.
Erhaltungsstatus
Trauerschwan
Crested Duck
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
Crested Duck
Brown body with dark streaking; long pointed crest on hindcrown. Face and throat pale with dark eye patch. Iridescent purple-bronze speculum bordered white. Bill and legs grayish. Sexes similar. Andean …
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.
Crested Duck
A large grey-brown Andean duck with a slightly shaggy crest on the nape, long neck, and bronze-and-black speculum. Found along fast-flowing Andean rivers and high-altitude lakes. Highly territorial; pairs defend stretches of river or lakeshores. Feeds by dabbling and upending.