Wandering Whistling-duck vs Magellanic Steamerduck
Dendrocygna arcuata comparado com Tachyeres pteneres
Side-by-Side Comparison
| Atributo | Wandering Whistling-duck | Magellanic Steamerduck |
|---|---|---|
| Nome científico | Dendrocygna arcuata | Tachyeres pteneres |
| Ordem | Anseriformes | Anseriformes |
| Família | Anatidae | Anatidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 37,2 cm (14.6 in) | 52,2 cm (20.6 in) |
| Peso | 779,5 g (27.50 oz) | 4881,25 g (172.18 oz) |
| Dieta | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Feeds on seeds, aquatic invertebrates, and plant matter; dabbles in wetlands; diet heavily invertebrate during … |
| Tamanho da postura | 6-15 | 4-8 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Nenhum
Wandering Whistling-duck only
Magellanic Steamerduck only
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Magellanic Steamerduck
Rocky coastal shores, kelp-fringed channels, and sheltered bays of Patagonian Chile and Argentina. Flightless; confined to coastline. Nests on rocky shorelines. Uses wings to propel across water surface.
Song & Call Comparison
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Magellanic Steamerduck
A loud, rattling, staccato 'kik-kik-kik' that sounds like a steam engine — hence 'steamerduck'. The wings also produce a loud churring sound as they beat the water surface.
Geographic Range & Migration
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Magellanic Steamerduck
Breeds in the Arctic and sub-Arctic; winters on the open Pacific Ocean from British Columbia to Baja California.
Estado de conservação
Wandering Whistling-duck
Magellanic Steamerduck
How to Tell Them Apart
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
Magellanic Steamerduck
Heavy, flightless. Males gray with white eye-stripe and orange-yellow bill. Breast and flanks mottled rufous-brown. Females more brown with white eye-ring and olive-yellow bill. Wings used for steaming.
About These Birds
Wandering Whistling-duck
O parreco-vagabundo é um pato assobiadeiro encontrado da Indonésia e Filipinas à Austrália. Tem a coloração castanho-avermelhada típica dos parrecos com flancos largamente barrados de castanho-escuro e branco. Habita zonas húmidas de água doce, incluindo lagos, pântanos e planícies inundadas tropicais. É gregário e frequentemente mistura-se com outras espécies de parrecos. Os bandos podem ser muito numerosos durante as estações não reprodutoras.
Magellanic Steamerduck
A large flightless steamerduck with grey-blue plumage, a rust-orange head (male), and massive orange-red bill. Named for its habit of steaming across water using wings and feet. Found on rocky Patagonian coasts and sheltered channels. Among the world's heaviest ducks at up to 6 kg.