Spotted Whistling-duck vs Red-crested Pochard
Dendrocygna guttata в сравнении с Netta rufina
Side-by-Side Comparison
| Характеристика | Spotted Whistling-duck | Red-crested Pochard |
|---|---|---|
| Научное название | Dendrocygna guttata | Netta rufina |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 41,3 cm (16.3 in) | 51,7 cm (20.4 in) |
| Масса | 677,5 g (23.90 oz) | 1087,5 g (38.36 oz) |
| Питание | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … | Dives for molluscs and aquatic invertebrates in coastal habitats; diet dominated by hard-shelled benthic invertebrates. |
| Размер кладки | 10-11 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Spotted Whistling-duck only
Red-crested Pochard only
Нет
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.
Red-crested Pochard
Large freshwater and brackish lakes, reservoirs, river deltas, and coastal lagoons across southern Europe and Central Asia. Winters on large open water bodies in southern Europe, the Middle East, and South Asia.
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.
Red-crested Pochard
Male emits a harsh, rasping errr note; female gives a loud, quacking series. The raspy male call is distinctive among pochards; alarm is an emphatic, repeated series on Eurasian lakes.
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.
Red-crested Pochard
Breeds across Arctic and subarctic North America; winters broadly across the interior and coastal United States.
Охранный статус
Spotted Whistling-duck
Red-crested Pochard
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.
Red-crested Pochard
Males have rounded orange-rufous head with bright red bill; black breast, neck and undertail; white flanks; brown back. Females dark brown with pale cheeks. Bold white wing stripe in flight. …
About These Birds
Spotted Whistling-duck
A small dark brown whistling-duck with bold white spots on its flanks, orange-red bill and legs, and a pale face. Found in tropical wetlands of New Guinea, the Philippines, and Indonesia. Often found near freshwater streams and flooded grassland. Less gregarious than other whistling-ducks.
Red-crested Pochard
A large handsome diving duck. Males have a magnificent orange-red rounded head, scarlet bill, black breast and rear, and white flanks; females are brown with contrasting pale cheek. Dives and dabbles for aquatic vegetation. Found across southern Eurasia.