Wandering Whistling-duck vs Black Scoter
Dendrocygna arcuata comparado con Melanitta americana
Side-by-Side Comparison
| Atributo | Wandering Whistling-duck | Black Scoter |
|---|---|---|
| Nombre científico | Dendrocygna arcuata | Melanitta americana |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Near Threatened |
| Longitud | — | — |
| Envergadura | 37,2 cm (14.6 in) | 44,0 cm (17.3 in) |
| Peso | 779,5 g (27.50 oz) | 1046,1 g (36.90 oz) |
| Dieta | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for molluscs, particularly mussels and clams, in coastal waters. Takes aquatic insects and plant … |
| Tamaño de la puesta | 6-15 | 5-11 |
| Population Trend | — | — |
Habitat Comparison
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.
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.
Black Scoter
Male produces a low, melodious whistle; female gives a harsh, grating call. Closely related to Common Scoter; voice very similar; heard on North American Pacific and Atlantic coasts in winter.
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.
Black Scoter
Breeds in boreal forests and tundra of Alaska and northern Canada. Winters along Pacific and Atlantic coasts south to Baja California and Florida.
Estado de conservación
Wandering Whistling-duck
Black Scoter
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.
Black Scoter
Male is pure glossy black throughout with a prominent bright orange-yellow knob at bill base. Female is dark sooty-brown with pale buff cheeks and foreneck contrasting with darker cap and …
About These Birds
Wandering Whistling-duck
El pato silbador vagabundo es un pato silbador de distribución amplia en las regiones tropicales de Asia y el Pacífico, desde Borneo e Indonesia hasta Nueva Guinea y Australia. Tiene plumaje castaño con blanco y negro en los flancos. Habita en humedales tropicales, pantanos, lagunas, estanques y arrozales. Es una especie nómada que sigue las lluvias en busca de humedales.
Black Scoter
El negrón americano es el homólogo americano del negrón común, del que se diferencia por el color del pico del macho, con un pronunciado gálbulo amarillo-naranja. Cría en la tundra y los bosques boreales de Norteamérica e inverna en las costas del Atlántico y del Pacífico de Estados Unidos. Es relativamente común en sus cuarteles de invierno donde puede verse en grandes bandadas.