Snow Goose vs Trauerschwan
Anser caerulescens verglichen mit Cygnus atratus
Side-by-Side Comparison
| Merkmal | Snow Goose | Trauerschwan |
|---|---|---|
| Wissenschaftlicher Name | Anser caerulescens | Cygnus atratus |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 130,0 cm (51.2 in) |
| Flügelspannweite | 82,4 cm (32.4 in) | 190,0 cm (74.8 in) |
| Gewicht | 2561,0 g (90.34 oz) | 6200,0 g (218.70 oz) |
| Ernährung | Grazes submerged aquatic vegetation and eelgrass in estuaries; also takes grasses and sedges on coastal … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Gelegegröße | 2-6 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Snow Goose
Breeds on coastal and inland Arctic tundra in Canada, Alaska, and Greenland. Winters on agricultural fields, marshes, and coastal wetlands across the United States and northern Mexico. Forms enormous flocks.
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Snow Goose
A loud, nasal barking 'luk-luk' or 'kow-kow'. Large flocks create enormous noise during Arctic nesting and winter staging. Considered a noisy, conspicuous goose.
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
Snow Goose
Breeds in eastern North America's boreal forest; winters on the Atlantic coast from New England to South Carolina.
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Erhaltungsstatus
Snow Goose
Trauerschwan
How to Tell Them Apart
Snow Goose
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
Snow Goose
A distinctive goose with two morphs—white with black wingtips, or 'blue morph' with dark body and white head. Large flocks create spectacular migration events. Breeds in the Arctic; winters in the United States and Mexico. Population growth has caused severe overgrazing of Arctic salt marshes.
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.