Barnacle Goose vs Spotted Whistling-duck
Branta leucopsis comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Barnacle Goose | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Branta leucopsis | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 76,4 cm (30.1 in) | 41,3 cm (16.3 in) |
| Peso | 1685,0 g (59.44 oz) | 677,5 g (23.90 oz) |
| Dieta | Large white swan grazing aquatic plants and grasses; upends for submerged vegetation; supplements diet with … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 2-9 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Barnacle Goose only
Nenhum
Spotted Whistling-duck only
Nenhum
Barnacle Goose
Breeds on inaccessible Arctic cliff ledges in Greenland, Svalbard, and Novaya Zemlya. Winters on coastal saltmarshes, pastures, and estuaries in northwestern Europe, particularly Scotland and Ireland.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Barnacle Goose
A rapid, high-pitched barking 'uk-uk-uk' given rapidly in flocks. Higher-pitched and more rapid than Canada Goose. Migrating flocks create a constant excited barking chorus.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Barnacle Goose
Breeds in Arctic tundra of Alaska and Canada; winters on the Pacific and Atlantic coasts of the United States and northern Mexico.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Estado de conservação
Barnacle Goose
Spotted Whistling-duck
How to Tell Them Apart
Barnacle Goose
Striking black, white and gray pattern. White face and forehead; black crown, neck, and upper breast. Gray back with black and white barring. White underparts. Black tail. Sexes similar; elegant …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Barnacle Goose
O ganso-pato é um ganso médio com face branca característica, coroa, pescoço e peito pretos, e corpo cinzento. Cria em penhascos íngremes nas ilhas árticas e hiberna nas zonas húmidas da Europa Ocidental, principalmente nos Países Baixos, Irlanda e Escócia. A legendária conexão com percevejos do mar levou à crença medieval de que nasciam de cracas. As populações cresceram consideravelmente nas últimas décadas.
Spotted Whistling-duck
O parreco-pintalgado é um pato assobiadeiro grande encontrado nas Filipinas, Indonésia e Papua Nova Guiné. Distingue-se pelos seus flancos e cobertura da cauda largamente com pintas brancas num fundo escuro. Tem pescoço escuro, coroa castanha e bico e pernas cinzentos. Habita zonas húmidas tropicais de baixa altitude, lagos e arrozais. Tem uma distribuição fragmentada e é classificado como quase ameaçado em algumas regiões.