Spotted Whistling-duck vs Ruddy Shelduck
Dendrocygna guttata comparado com Tadorna ferruginea
Side-by-Side Comparison
| Atributo | Spotted Whistling-duck | Ruddy Shelduck |
|---|---|---|
| Nome científico | Dendrocygna guttata | Tadorna ferruginea |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 41,3 cm (16.3 in) | 71,1 cm (28.0 in) |
| Peso | 677,5 g (23.90 oz) | 1318,3333333333333 g (46.50 oz) |
| Dieta | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Feeds on seeds, plant material, and aquatic invertebrates; dabbles in wetlands; diet varies between seasons … |
| Tamanho da postura | 10-11 | 8-16 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Spotted Whistling-duck only
Ruddy Shelduck only
Nenhum
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.
Ruddy Shelduck
Steppe lakes, river valleys, inland saline and freshwater wetlands from southeastern Europe and North Africa east through Central Asia to China and Mongolia. Winters on lakes and rivers in South and Southeast Asia.
Song & Call Comparison
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.
Ruddy Shelduck
A loud, resonant bugling 'aakh' from males; females give a rapid cackling 'kak-kak-kak'. Call carries far across open Asian steppe and river valleys.
Geographic Range & Migration
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Ruddy Shelduck
Breeds in wetlands across Eurasia; winters from sub-Saharan Africa to South and Southeast Asia. Broad wintering distribution.
Estado de conservação
Spotted Whistling-duck
Ruddy Shelduck
How to Tell Them Apart
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.
Ruddy Shelduck
Warm orange-rufous overall plumage; paler buffy head. Males have narrow black neck collar in breeding season. Black tail and primaries. White wing coverts and iridescent green speculum visible in flight. …
About These Birds
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.
Ruddy Shelduck
O pato-de-casaca é um pato-de-terra grande com corpo castanho-laranjado brilhante, cabeça mais pálida e bico, asas e cauda pretos. As asas têm remendos brancos grandes visíveis em voo. Está amplamente distribuído em estepes e zonas semiáridas da Ásia Central, com populações mais pequenas no Mediterrâneo e Norte de África. Habita paisagens abertas perto de água, incluindo lagos de estepe, rios e costas. É uma espécie sagrada no budismo tibetano.