Spotted Whistling-duck vs Lesser Whistling-duck
Dendrocygna guttata comparado con Dendrocygna javanica
Side-by-Side Comparison
| Atributo | Spotted Whistling-duck | Lesser Whistling-duck |
|---|---|---|
| Nombre científico | Dendrocygna guttata | Dendrocygna javanica |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 41,3 cm (16.3 in) | 38,8 cm (15.3 in) |
| Peso | 677,5 g (23.90 oz) | 525,0 g (18.52 oz) |
| Dieta | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Grazes subarctic grasses and rushes; migratory; winters on estuarine mudflats and coastal grasslands eating eelgrass … |
| Tamaño de la puesta | 10-11 | 7-17 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Spotted Whistling-duck only
Ninguno
Lesser Whistling-duck only
Ninguno
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.
Lesser Whistling-duck
Freshwater wetlands, lakes, rice paddies, mangroves, and slow rivers across South and Southeast Asia from India through southern China to Borneo and Indonesia. Common near cultivated land and human settlements.
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.
Lesser Whistling-duck
A softer, higher-pitched whistle than other Dendrocygna. Call is a quick 'we-we' given in flight. Smaller size reflected in higher-pitched and thinner quality of call.
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.
Lesser Whistling-duck
Breeds on tundra of northern Canada and Alaska; winters on the Pacific coast from California to Mexico and Central America.
Estado de conservación
Spotted Whistling-duck
Lesser Whistling-duck
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.
Lesser Whistling-duck
Warm chestnut-brown overall; head and neck brown; upperparts dark brown. Chestnut rump and upper-tail conspicuous in flight. Flanks chestnut with pale streaks. Bill and legs dark gray. Sexes similar.
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.
Lesser Whistling-duck
El pato silbador menor es el más pequeño de los patos silbadores y está ampliamente distribuido en el sur y el sudeste de Asia. Tiene plumaje de color marrón castaño con tonos más oscuros en el dorso. Habita en pantanos, arrozales, lagunas y ríos lentos con vegetación en India, Sri Lanka, el sudeste asiático e Indonesia. Es una especie nocturna que forrajea principalmente de noche.