Wandering Whistling-duck vs South African Shelduck
Dendrocygna arcuata comparado con Tadorna cana
Side-by-Side Comparison
| Atributo | Wandering Whistling-duck | South African Shelduck |
|---|---|---|
| Nombre científico | Dendrocygna arcuata | Tadorna cana |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 37,2 cm (14.6 in) | 69,0 cm (27.2 in) |
| Peso | 779,5 g (27.50 oz) | 1323,6666666666667 g (46.69 oz) |
| Dieta | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Eats seeds, aquatic plants, and invertebrates; dabbles in shallow water; diet more invertebrate-heavy in breeding … |
| Tamaño de la puesta | 6-15 | 4-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Wandering Whistling-duck only
Ninguno
South African Shelduck 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.
South African Shelduck
Inland freshwater and saline lakes, pans, dams, and rivers across southern Africa, primarily on the South African plateau, Lesotho, and Namibia. Nests in burrows dug by aardvark. Highly terrestrial for a shelduck.
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.
South African Shelduck
Male gives a whistled 'wheeu'; female gives a harsh, descending cackle. Calls from South African wetlands and vleis. Sexual dimorphism in call is strong.
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.
South African Shelduck
Breeds in subarctic Eurasia and winters in sub-Saharan Africa, the Indian subcontinent, and Southeast Asia.
Estado de conservación
Wandering Whistling-duck
South African Shelduck
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.
South African Shelduck
Males have gray head and neck; rufous-brown body with white wing coverts and green speculum. Females similar but with white facial markings around bill and eye. Body rich rufous-chestnut. Endemic …
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.
South African Shelduck
El tarro sudafricano o tarro del Cabo es un grande pato del sur de África con la cabeza gris en el macho y la cara blanca con una mancha marrón en la hembra. El cuerpo es de color canela-marrón. Es endémico de Sudáfrica, Namibia y Botsuana, donde habita en humedales abiertos, pantanos y lagos salinos y semisalinos, así como en embalses.