Blue-winged Goose vs Spotted Whistling-duck
Cyanochen cyanoptera comparado com Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Blue-winged Goose | Spotted Whistling-duck |
|---|---|---|
| Nome científico | Cyanochen cyanoptera | Dendrocygna guttata |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Near Threatened | Least Concern |
| Comprimento | — | — |
| Envergadura | 65,2 cm (25.7 in) | 41,3 cm (16.3 in) |
| Peso | 1796,25 g (63.36 oz) | 677,5 g (23.90 oz) |
| Dieta | Eats aquatic plants, seeds, and invertebrates; dabbles in shallow ponds; diet shifts toward invertebrates in … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamanho da postura | 4-12 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Blue-winged Goose only
Nenhum
Spotted Whistling-duck only
Blue-winged Goose
Alpine and subalpine grasslands, riverbanks, and marshy meadows at 2,800–4,200 m on the Ethiopian Highlands. Grazes along stream and river margins. Strongly tied to highland wetlands near cold mountain streams.
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
Blue-winged Goose
A soft, nasal bleating call from Ethiopian highland wetlands. The NT status and restricted Afroalpine range mean vocalizations are poorly documented in systematic detail.
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
Blue-winged Goose
Breeds in northern prairie wetlands; winters along the Atlantic and Gulf coasts of the United States.
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
Blue-winged Goose
Spotted Whistling-duck
How to Tell Them Apart
Blue-winged Goose
Mostly dull gray-brown; head paler gray. Distinctive pale blue wing patch conspicuous in flight. Underparts slightly paler. Bill and legs pinkish-gray. Sexes similar. Endemic to Ethiopian highlands.
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
Blue-winged Goose
O ganso-de-asa-azul é um ganso médio endémico das terras altas da Etiópia. Tem plumagem cinzenta com remendos de asa azuis, verdes e brancos marcantes, visíveis principalmente em voo. É encontrado em prados montanos, zonas húmidas e margens de lagos em altitudes entre 2.000 e 4.000 metros acima do nível do mar. A espécie está classificada como vulnerável devido ao seu alcance restrito, perda de habitat e perturbação humana. É facilmente perturbado e evita áreas com alta presença humana.
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.