Coscoroba Swan vs Mute Swan
Coscoroba coscoroba comparado com Cygnus olor
Side-by-Side Comparison
| Atributo | Coscoroba Swan | Mute Swan |
|---|---|---|
| Nome científico | Coscoroba coscoroba | Cygnus olor |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 152,0 cm (59.8 in) |
| Envergadura | 84,2 cm (33.1 in) | 235,0 cm (92.5 in) |
| Peso | 4200,0 g (148.15 oz) | 11000,0 g (388.01 oz) |
| Dieta | Eats seeds, aquatic plants, and invertebrates; dabbles and upends in shallow water; diet more invertebrate-heavy … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Tamanho da postura | 4-9 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Coscoroba Swan
Freshwater lakes, marshes, lagoons, and flooded grasslands from southern Brazil through Uruguay, Chile, and Argentina to Tierra del Fuego. Partially migratory; moves northward in winter. Nests in reedy margins.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Coscoroba Swan
A bugling, honking 'coscoroba' call — giving the species its onomatopoeic name. Loud and far-carrying. Less commonly heard than northern hemisphere swans.
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.
Geographic Range & Migration
Coscoroba Swan
Breeds in western North American prairies and parklands; winters in California, the Southwest, and northern Mexico.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Estado de conservação
Coscoroba Swan
Mute Swan
How to Tell Them Apart
Coscoroba Swan
Entirely white plumage except black wingtips visible in flight. Bright red bill and red legs and feet. Red eye-ring. More goose-like than true swans. Juvenile has brownish wash. Sexes similar.
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
About These Birds
Coscoroba Swan
O cisne-coscoroba é um cisne incomum da América do Sul, o único membro do seu género. Ao contrário dos verdadeiros cisnes, não tem pescoço tão longo e assemelha-se mais a um ganso grande. Tem plumagem branca com pontas das asas pretas e bico e pernas vermelhas. Cria em zonas húmidas da Patagónia, Terra do Fogo e adjacentes e hiberna no norte da Argentina, Uruguai e sul do Brasil. O seu apelo sonoro é o nome 'cos-cor-o-ba' que lhe deu o …
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.