Greylag Goose vs Black Swan
Anser anser comparado com Cygnus atratus
Side-by-Side Comparison
| Atributo | Greylag Goose | Black Swan |
|---|---|---|
| Nome científico | Anser anser | Cygnus atratus |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | 130,0 cm (51.2 in) |
| Envergadura | 87,1 cm (34.3 in) | 190,0 cm (74.8 in) |
| Peso | 3297,5 g (116.32 oz) | 6200,0 g (218.70 oz) |
| Dieta | -- | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … |
| Tamanho da postura | 3-12 | 4-6 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Greylag Goose
Breeds on moorland, bogs, freshwater wetlands, and lake margins across Eurasia from Iceland to central Asia. Winters on estuaries, agricultural fields, and wetlands. Feral populations year-round in parks.
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
Song & Call Comparison
Greylag Goose
A deep, loud 'aahng' honking. The ancestral goose of domesticated geese; its call is the template for the classic 'goose honk'. Flocks are highly vocal in flight.
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
Geographic Range & Migration
Greylag Goose
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Estado de conservação
Greylag Goose
Black Swan
How to Tell Them Apart
Greylag Goose
Large and heavy; uniformly gray-brown with pale feather fringes on back. Head and neck grayish-brown. Orange-pink bill; pink legs. Pale gray forewing conspicuous in flight. Ancestor of domestic geese.
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
About These Birds
Greylag Goose
O ganso-bravo é o maior ganso cinzento e o ancestral de todas as raças de gansos domésticos. Tem plumagem cinzenta com ventre mais pálido e penas traseiras com bordas brancas. Cria em zonas húmidas de pradaria e tundra em toda a Europa e Ásia. Hiberna no sul da Europa, norte de África e sul da Ásia. É uma espécie adaptável que frequentemente aproveita campos agrícolas. As populações aumentaram em muitas partes da Europa nas últimas décadas.
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.