Wandering Whistling-duck vs Harlequin Duck
Dendrocygna arcuata comparado con Histrionicus histrionicus
Side-by-Side Comparison
| Atributo | Wandering Whistling-duck | Harlequin Duck |
|---|---|---|
| Nombre científico | Dendrocygna arcuata | Histrionicus histrionicus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 37,2 cm (14.6 in) | 38,8 cm (15.3 in) |
| Peso | 779,5 g (27.50 oz) | 553,0 g (19.51 oz) |
| Dieta | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Forages in fast-flowing streams for aquatic insect larvae, amphipods, and small fish. Dives and clings … |
| Tamaño de la puesta | 6-15 | 3-9 |
| 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.
Harlequin Duck
Male gives a squeaky, mouse-like squeal; female produces a guttural, grunting call. The male's bizarre, high-pitched squealing call is completely unexpected in such a compact seaduck.
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.
Harlequin Duck
Breeds on fast-flowing rivers in Iceland, Greenland, and northern North America. Winters along rocky Pacific and Atlantic coasts south to California.
Estado de conservación
Wandering Whistling-duck
Harlequin Duck
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.
Harlequin Duck
Male is slate-blue with bold white crescent before eye, white spots and streaks on head, neck, and scapulars, and rich chestnut flanks. Female is dark sooty-brown with three white facial …
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.
Harlequin Duck
El pato arlequín es un espectacular pato de agua dulce con el macho de color azul-gris con parches blancos y castaños bordeados de negro, recordando el traje de un arlequín. Habita en ríos y arroyos de montaña de aguas rápidas e impetuosas durante la temporada reproductora, siendo uno de los pocos patos adaptados a la vida en torrentes de montaña. Inverna en costas rocosas.