Mute Swan vs Lake Duck
Cygnus olor comparado con Oxyura vittata
Side-by-Side Comparison
| Atributo | Mute Swan | Lake Duck |
|---|---|---|
| Nombre científico | Cygnus olor | Oxyura vittata |
| 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) | 27,6 cm (10.9 in) |
| Peso | 11000,0 g (388.01 oz) | 665,0 g (23.46 oz) |
| Dieta | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … | Dives for aquatic invertebrates and plant seeds in South American freshwater lakes and marshes. Feeds … |
| Tamaño de la puesta | 5-7 | 3-5 |
| 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.
Lake Duck
Male produces a mechanical, drumming staccato call; female gives a soft, nasal quack. Drumming display resembles other Oxyura stiff-tails; heard at dawn on Andean and Patagonian lakes.
Geographic Range & Migration
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Lake Duck
Resident in southern South America from central Chile and central Argentina south to Tierra del Fuego. Found on lowland lakes and lagoons.
Estado de conservación
Mute Swan
Lake 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
Lake Duck
Male is dark chestnut-brown with black head, pale whitish-grey cheeks, and cobalt-blue bill. Female is brownish-buff with streaked upperparts and a distinctive pale supercilium; undertail coverts whitish.
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.
Lake Duck
El pato capuchino o pato zambullidor sudamericano es un pato de cola tiesa del sur de América del Sur con el macho de cabeza y cuello negros y las partes superiores de color castaño rojizo. Habita en lagunas y estanques de agua dulce con juncos y totoras. Como otros patos de cola tiesa, lleva la larga y erguida cola a menudo levantada en ángulo durante la natación.