Trauerschwan vs Tundra Swan
Cygnus atratus verglichen mit Cygnus columbianus
Side-by-Side Comparison
| Merkmal | Trauerschwan | Tundra Swan |
|---|---|---|
| Wissenschaftlicher Name | Cygnus atratus | Cygnus columbianus |
| 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) | 107,6 cm (42.4 in) |
| Gewicht | 6200,0 g (218.70 oz) | 6675,0 g (235.45 oz) |
| Ernährung | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Eats seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; diet becomes more invertebrate-heavy in … |
| Gelegegröße | 4-6 | 3-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Tundra Swan
Breeds on Arctic tundra ponds and lakes in Alaska, Canada, and Siberia. Winters on coastal estuaries, shallow bays, agricultural fields, and freshwater lakes in North America, Europe, and eastern 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.
Tundra Swan
A high, bugling 'who-who-who' with a musical quality. North American subspecies (Whistling Swan) produces a higher-pitched call than European Bewick's Swan (Cygnus c. bewickii).
Geographic Range & Migration
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Tundra Swan
Breeds in the northern Great Plains; winters along the Gulf Coast from Texas to Florida. Uses the Central and Mississippi flyways.
Erhaltungsstatus
Trauerschwan
Tundra 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
Tundra Swan
All-white plumage; bill black with small yellow patch at base near eye. Neck shorter and rounder-headed than Trumpeter Swan. Juveniles grayish-brown. Bewick's race has more extensive yellow on bill.
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.
Tundra Swan
A medium-sized white swan with a black bill often marked with a small yellow spot at the base. Migrates in large flocks between Arctic tundra breeding grounds and temperate wintering areas. Two subspecies: Bewick's Swan in the Old World and Whistling Swan in the New World.