Snow Goose vs Mute Swan
Anser caerulescens comparado com Cygnus olor
Side-by-Side Comparison
| Atributo | Snow Goose | Mute Swan |
|---|---|---|
| Nome científico | Anser caerulescens | Cygnus olor |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 152,0 cm (59.8 in) |
| Envergadura | 82,4 cm (32.4 in) | 235,0 cm (92.5 in) |
| Peso | 2561,0 g (90.34 oz) | 11000,0 g (388.01 oz) |
| Dieta | Grazes submerged aquatic vegetation and eelgrass in estuaries; also takes grasses and sedges on coastal … | Submerged aquatic vegetation, algae, and grass. Feeds by upending in shallow water, reaching depths of … |
| Tamanho da postura | 2-6 | 5-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Snow Goose
Breeds on coastal and inland Arctic tundra in Canada, Alaska, and Greenland. Winters on agricultural fields, marshes, and coastal wetlands across the United States and northern Mexico. Forms enormous flocks.
Mute Swan
Lakes, slow rivers, estuaries, and coastal lagoons. Often associated with parks and ornamental waters in Europe.
Song & Call Comparison
Snow Goose
A loud, nasal barking 'luk-luk' or 'kow-kow'. Large flocks create enormous noise during Arctic nesting and winter staging. Considered a noisy, conspicuous goose.
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
Snow Goose
Breeds in eastern North America's boreal forest; winters on the Atlantic coast from New England to South Carolina.
Mute Swan
Native to Europe and western Asia. Introduced to North America, South Africa, Australia, and New Zealand.
Estado de conservação
Snow Goose
Mute Swan
How to Tell Them Apart
Snow Goose
White morph: pure white plumage with black primaries and pink bill and legs. Blue morph: dark blue-gray body with white head. Both morphs interbreed freely. 'Grinning patch' on bill. Sexes …
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
Snow Goose
O ganso-branco é uma das aves migratórias mais numerosas da América do Norte, encontrada em duas fases de coloração: branca e azul. A fase branca tem plumagem branca com pontas pretas nas primárias, enquanto a fase azul tem asas escuras. Cria na tundra ártica e hiberna no sul dos Estados Unidos e no México. As populações têm crescido dramaticamente, causando degradação do habitat em locais de hibernada e paragens. Esforços de gestão incluem caça expandida para controlar os números.
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.