Yellow-billed Duck vs Spotted Whistling-duck
Anas undulata comparado con Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Yellow-billed Duck | Spotted Whistling-duck |
|---|---|---|
| Nombre científico | Anas undulata | Dendrocygna guttata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 48,1 cm (18.9 in) | 41,3 cm (16.3 in) |
| Peso | 907,6666666666666 g (32.02 oz) | 677,5 g (23.90 oz) |
| Dieta | Dives for fish, frogs, and aquatic invertebrates; uses serrated bill to grip prey; diet shifts … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamaño de la puesta | 4-12 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Yellow-billed Duck only
Ninguno
Spotted Whistling-duck only
Yellow-billed Duck
Freshwater lakes, rivers, marshes, and dams across eastern and southern Africa from Ethiopia and Uganda south to the Cape. Tolerates agricultural impoundments and urban wetlands. Largely sedentary.
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
Yellow-billed Duck
Female gives a loud, descending quacking series; male utters a soft, raspy rehb note. The female's strong quacking call is the dominant sound at sub-Saharan African wetlands.
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
Yellow-billed Duck
Found across sub-Saharan Africa from Senegal to Ethiopia and south to South Africa. Sedentary in freshwater wetlands.
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
Yellow-billed Duck
Spotted Whistling-duck
How to Tell Them Apart
Yellow-billed Duck
Brown body with scaly pale-edged feathers; head brown with paler face and throat. Diagnostic bright yellow bill with black central stripe. Iridescent green-and-black speculum with white borders. Sexes similar.
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
Yellow-billed Duck
El pato de pico amarillo es un pato de tamaño mediano con plumaje marrón oscuro moteado y un pico amarillo con una dorsal negra, lo que le da su nombre común. Está ampliamente distribuido en África subsahariana, donde habita en una variedad de humedales, incluyendo lagos, ríos, marismas y embalses. Es una especie común y adaptable que tolera bien la alteración humana de su hábitat.
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.