Wandering Whistling-duck vs Chiloe Wigeon
Dendrocygna arcuata comparado con Mareca sibilatrix
Side-by-Side Comparison
| Atributo | Wandering Whistling-duck | Chiloe Wigeon |
|---|---|---|
| Nombre científico | Dendrocygna arcuata | Mareca sibilatrix |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 37,2 cm (14.6 in) | 49,0 cm (19.3 in) |
| Peso | 779,5 g (27.50 oz) | 922,8333333333334 g (32.55 oz) |
| Dieta | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dabbles for seeds and aquatic invertebrates; diet varies between plant matter and invertebrates seasonally in … |
| Tamaño de la puesta | 6-15 | 2-13 |
| 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.
Chiloe Wigeon
Lakes, rivers, freshwater marshes, and coastal lagoons in southern South America from southern Peru and Bolivia south through Chile and Argentina to Tierra del Fuego and the Falkland Islands.
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.
Chiloe Wigeon
Male utters a short, melodious whistle; female gives a low purring note. Pairs and flocks call with clear piping exchanges across South American wetlands and coastal lagoons.
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.
Chiloe Wigeon
Found across Australia, New Guinea, Indonesia, and the Philippines. Nomadic in drier areas; resident in well-watered regions.
Estado de conservación
Wandering Whistling-duck
Chiloe Wigeon
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.
Chiloe Wigeon
Iridescent dark green head with white forehead blaze. Black and white barred flanks; rufous breast; white belly. White forewing patch. Legs blue-gray. Females similar but duller. South American temperate species.
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.
Chiloe Wigeon
A large boldly patterned wigeon with a metallic green head, white face, black breast, grey flanks with white barring, and a bright orange-yellow bill. Endemic to southern South America. Highly territorial; pairs defend lake territories. Named for Chiloé Island in Chile.