Trauerschwan vs Red-breasted Merganser
Cygnus atratus verglichen mit Mergus serrator
Side-by-Side Comparison
| Merkmal | Trauerschwan | Red-breasted Merganser |
|---|---|---|
| Wissenschaftlicher Name | Cygnus atratus | Mergus serrator |
| 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) | 46,7 cm (18.4 in) |
| Gewicht | 6200,0 g (218.70 oz) | 1058,3333333333333 g (37.33 oz) |
| Ernährung | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Dives for small fish, crustaceans, and aquatic invertebrates in coastal and freshwater habitats. Pursues fish … |
| Gelegegröße | 4-6 | 6-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Gemeinsame Lebensräume
Trauerschwan only
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Red-breasted Merganser only
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
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.
Red-breasted Merganser
Male produces a harsh, rasping series of notes; female gives a rough, guttural grunting. The harsh, rattling call is louder than Goosander; pairs and flocks create a rasping coastal cacophony.
Geographic Range & Migration
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Red-breasted Merganser
Circumpolar breeder in boreal and Arctic zones. Winters on coasts and large water bodies south to the Mediterranean and southern Asia.
Erhaltungsstatus
Trauerschwan
Red-breasted Merganser
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
Red-breasted Merganser
Male has dark green shaggy double crest, speckled chestnut breast band, white collar, and grey flanks; red bill. Female has rufous-brown head with ragged crest blending gradually into grey neck …
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.
Red-breasted Merganser
A medium-sized fish-eating duck (~1.1 kg) in family Anatidae, males with a ragged double crest, green head, and rufous breast band. Breeds near freshwater and coastal habitats across the Northern Hemisphere; winters in estuaries and coastal seas. Dives in pursuit of fish and invertebrates. Least Concern; one of the fastest flying ducks, reaching 100 km/h.