Pacific Black Duck vs Trauerschwan
Anas superciliosa verglichen mit Cygnus atratus
Side-by-Side Comparison
| Merkmal | Pacific Black Duck | Trauerschwan |
|---|---|---|
| Wissenschaftlicher Name | Anas superciliosa | Cygnus atratus |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | 130,0 cm (51.2 in) |
| Flügelspannweite | 50,2 cm (19.8 in) | 190,0 cm (74.8 in) |
| Gewicht | 1000,5 g (35.29 oz) | 6200,0 g (218.70 oz) |
| Ernährung | Dives for fish and aquatic invertebrates; serrated bill adapted for gripping prey; diet varies with … | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Gelegegröße | 3-15 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Pacific Black Duck
Freshwater and brackish wetlands across Australasia and the Pacific Islands, from freshwater lakes and rivers to coastal estuaries, mangroves, and irrigated agricultural areas. Highly adaptable to human-modified landscapes.
Trauerschwan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Pacific Black Duck
Female gives a loud, emphatic quacking series; male utters a soft quip note. Common call is a loud, repeated quack; alarm is an insistent, rattling quacking burst.
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
Pacific Black Duck
Found across sub-Saharan Africa and Madagascar; locally sedentary in freshwater lakes and rivers year-round.
Trauerschwan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Erhaltungsstatus
Pacific Black Duck
Trauerschwan
How to Tell Them Apart
Pacific Black Duck
Brownish-black body with pale buff feather edges giving scaly appearance. Bold pale buff supercilium and dark eye-stripe and crown stripe on paler face. Iridescent green speculum. Gray bill; orange legs. …
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
Pacific Black Duck
A large brown dabbling duck with a distinctive bold head pattern: dark crown, buff cheeks with two dark stripes, and a green speculum. The Mallard equivalent in Australasia. Widespread and common in Australia, New Zealand, New Guinea, and Pacific islands. Very tolerant of human presence.
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.