Barrow's Goldeneye vs Spotted Whistling-duck
Bucephala islandica comparado con Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Barrow's Goldeneye | Spotted Whistling-duck |
|---|---|---|
| Nombre científico | Bucephala islandica | Dendrocygna guttata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 44,3 cm (17.4 in) | 41,3 cm (16.3 in) |
| Peso | 838,0 g (29.56 oz) | 677,5 g (23.90 oz) |
| Dieta | Dives for crustaceans, aquatic insects, and molluscs in mountain lakes and coastal bays. Diet similar … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamaño de la puesta | 6-14 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Barrow's Goldeneye only
Ninguno
Spotted Whistling-duck 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
Barrow's Goldeneye
Male produces a whistled, nasal kaow-kaow call; female gives a harsh quacking series. The male's wheezy, double call differs from Common Goldeneye; heard on western North American lakes.
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.
Geographic Range & Migration
Barrow's Goldeneye
Breeds in Iceland, western Canada, and locally the western United States. Winters on coasts and lakes of the Pacific Northwest and eastern Canada.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Estado de conservación
Barrow's Goldeneye
Spotted Whistling-duck
How to Tell Them Apart
Barrow's Goldeneye
Male has iridescent purple-black head with crescent-shaped white facial patch; white body with black scapulars bearing bold white spots. Female grey with brown head, white collar; head rounder than Common …
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.
About These Birds
Barrow's Goldeneye
El pato islandés o porrón islandés es un pato buceador de América del Norte y el noroeste de Europa, muy similar al pato chillón pero con la cabeza de color más purpúreo en el macho. A diferencia del pato chillón, tiene un parche facial en forma de media luna. Habita en lagos de agua clara alimentados por manantiales y ríos limpios, donde se alimenta principalmente de invertebrados bentónicos.
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.