Mute Swan vs Blue-billed Duck
Cygnus olor comparado con Oxyura australis
Side-by-Side Comparison
| Atributo | Mute Swan | Blue-billed Duck |
|---|---|---|
| Nombre científico | Cygnus olor | Oxyura australis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | 152,0 cm (59.8 in) | — |
| Envergadura | 235,0 cm (92.5 in) | 30,8 cm (12.1 in) |
| Peso | 11000,0 g (388.01 oz) | 837,75 g (29.55 oz) |
| Dieta | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Dives for aquatic invertebrates, seeds, and plant material in Australian freshwater lakes and swamps. Highly … |
| Tamaño de la puesta | 5-7 | 5-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Mute Swan
Despite its name, not truly mute: gives hissing snorts and low grunting when threatened. Wings produce a loud rhythmic whistling throbbing sound in flight.
Blue-billed Duck
Male produces a mechanical, splashing display call with loud bill-drumming; female gives a harsh quack. The male's bizarre bubbling-cum-drumming display is spectacular on Australian lakes.
Geographic Range & Migration
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Blue-billed Duck
Resident in southwestern and southeastern Australia. Found on freshwater swamps and lakes, avoiding arid and tropical regions.
Estado de conservación
Mute Swan
Blue-billed Duck
How to Tell Them Apart
Mute Swan
All-white plumage in adults. Cygnets are grey-brown, gradually whitening over the first year. Graceful S-curved neck posture is distinctive.
Orange bill with a prominent black knob at the base, larger in males
Blue-billed Duck
Breeding male is deep rich chestnut with black head and broad bright blue bill; tail often held erect. Female is dark brown with finely barred buff pattern on body and …
About These Birds
Mute Swan
The mute swan is one of the heaviest flying birds, with males weighing up to 14 kg. Despite its name, it is not truly mute, producing hissing, grunting, and snorting sounds. Mute swans form lifelong pair bonds and their aggressive defense of nesting territory is well known.
Blue-billed Duck
El pato de cola azul australiano es un pato de cola tiesa endémico de Australia y Tasmania. El macho tiene el pico azul brillante, la cabeza negra y el cuerpo castaño rojizo. La hembra es de color marrón oscuro. Habita en pantanos de agua dulce profunda con vegetación emergente densa. Está clasificado como vulnerable, afectado por la pérdida de humedales.