Trauerschwan vs Ruddy Shelduck
Cygnus atratus verglichen mit Tadorna ferruginea
Side-by-Side Comparison
| Merkmal | Trauerschwan | Ruddy Shelduck |
|---|---|---|
| Wissenschaftlicher Name | Cygnus atratus | Tadorna ferruginea |
| 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) | 71,1 cm (28.0 in) |
| Gewicht | 6200,0 g (218.70 oz) | 1318,3333333333333 g (46.50 oz) |
| Ernährung | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Feeds on seeds, plant material, and aquatic invertebrates; dabbles in wetlands; diet varies between seasons … |
| Gelegegröße | 4-6 | 8-16 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Ruddy Shelduck
Steppe lakes, river valleys, inland saline and freshwater wetlands from southeastern Europe and North Africa east through Central Asia to China and Mongolia. Winters on lakes and rivers in South and Southeast Asia.
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.
Ruddy Shelduck
A loud, resonant bugling 'aakh' from males; females give a rapid cackling 'kak-kak-kak'. Call carries far across open Asian steppe and river valleys.
Geographic Range & Migration
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Ruddy Shelduck
Breeds in wetlands across Eurasia; winters from sub-Saharan Africa to South and Southeast Asia. Broad wintering distribution.
Erhaltungsstatus
Trauerschwan
Ruddy Shelduck
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
Ruddy Shelduck
Warm orange-rufous overall plumage; paler buffy head. Males have narrow black neck collar in breeding season. Black tail and primaries. White wing coverts and iridescent green speculum visible in flight. …
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.
Ruddy Shelduck
A large orange-brown shelduck with a pale buff head, black neck ring (male only), white wing patches, and bright green speculum. Widespread from Morocco and southeastern Europe east to China. Sacred to Buddhists in Tibet. Nests in burrows, rock crevices, and ruins.