Spotted Whistling-duck vs White-winged Scoter
Dendrocygna guttata comparado con Melanitta deglandi
Side-by-Side Comparison
| Atributo | Spotted Whistling-duck | White-winged Scoter |
|---|---|---|
| Nombre científico | Dendrocygna guttata | Melanitta deglandi |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 41,3 cm (16.3 in) | 54,0 cm (21.3 in) |
| Peso | 677,5 g (23.90 oz) | 1647,1666666666667 g (58.10 oz) |
| Dieta | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Dives for molluscs, crustaceans, and small fish in coastal and inland waters. Favours mussels and … |
| Tamaño de la puesta | 10-11 | 6-16 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Spotted Whistling-duck only
White-winged Scoter only
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
White-winged Scoter
Male produces a soft, whistled note; female gives a harsh, grating call. Similar to Velvet Scoter; the female's rasping call carries across North Pacific bays and coastal inlets.
Geographic Range & Migration
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
White-winged Scoter
Breeds in boreal forest and tundra of interior North America. Winters along Pacific and Atlantic coasts south to California and the Gulf states.
Estado de conservación
Spotted Whistling-duck
White-winged Scoter
How to Tell Them Apart
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
White-winged Scoter
Male is black with conspicuous white secondaries and a white comma-shaped mark below eye; orange-yellow bill with black basal knob. Female dark brownish-black with two pale facial patches and white …
About These Birds
Spotted Whistling-duck
El pato silbador moteado es un pato silbador de Indonesia, Filipinas y Nueva Guinea, fácilmente reconocible por el plumaje marrón oscuro con manchas blancas en los flancos. Habita en bosques húmedos tropicales con estanques, pantanos y arrozales. Como todos los patos silbadores, tiene un llamado silbante característico y postura erguida. Está clasificado como casi amenazado.
White-winged Scoter
El negrón aliblanco norteamericano es un gran pato marino con el macho negro con un parche blanco oval bajo el ojo y el ala de color blanco. Habita en costas marinas del Pacífico de América del Norte durante el invierno, donde se alimenta principalmente de mejillones, almejas y otros moluscos buceando. Cría en lagos de bosques boreales del norte de Norteamérica.