Cape Barren Goose vs Mute Swan
Cereopsis novaehollandiae comparado com Cygnus olor
Side-by-Side Comparison
| Atributo | Cape Barren Goose | Mute Swan |
|---|---|---|
| Nome científico | Cereopsis novaehollandiae | Cygnus olor |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 152,0 cm (59.8 in) |
| Envergadura | 94,2 cm (37.1 in) | 235,0 cm (92.5 in) |
| Peso | 3816,6666666666665 g (134.63 oz) | 11000,0 g (388.01 oz) |
| Dieta | Grazes aquatic vegetation and submerged plants; largest Southern Hemisphere swan; winters on estuaries eating eelgrass … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Tamanho da postura | 3-6 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Cape Barren Goose
Open grasslands, heathlands, and low scrub on offshore islands and coastal mainland of southern Australia. Grazes in open areas. Nests on the ground. Largely sedentary with some mainland movements in winter.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Cape Barren Goose
A loud, grunting 'honk-honk' from both sexes. The Cape Barren Goose gives pig-like grunting and cackling sounds. Not musical; its calls are distinctive but harsh.
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
Cape Barren Goose
Breeds in northern North America; winters in the Great Basin, Great Plains, and coastal areas of the contiguous United States.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Estado de conservação
Cape Barren Goose
Mute Swan
How to Tell Them Apart
Cape Barren Goose
Pale ash-gray plumage with small dark spots on wing coverts. Head whitish-gray. Bill short with prominent lime-green cere. Legs and feet pinkish-red. Sexes similar; one of few native Australian geese.
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
Cape Barren Goose
Ganso-de-Céreopsis (Cereopsis novaehollandiae), 75–100 cm. Grande ganso cinzento com píleo claro, bico curto e verde-amarelado com ponta negra, pernas vermelhas. Habita pastagens e campos costeiros do sul da Austrália e ilhas adjacentes. Alimenta-se principalmente de ervas e plantas aquáticas. Nidifica no solo.
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.