African Black Duck vs Plumed Whistling-duck
Anas sparsa в сравнении с Dendrocygna eytoni
Side-by-Side Comparison
| Характеристика | African Black Duck | Plumed Whistling-duck |
|---|---|---|
| Научное название | Anas sparsa | Dendrocygna eytoni |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 49,5 cm (19.5 in) | 46,4 cm (18.3 in) |
| Масса | 996,8333333333334 g (35.16 oz) | 877,5 g (30.95 oz) |
| Питание | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Grazes short tundra grasses; also takes aquatic vegetation; large Arctic goose wintering on coastal marshes … |
| Размер кладки | 4-9 | 8-14 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
African Black Duck only
Plumed Whistling-duck only
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
Plumed Whistling-duck
Grassy tropical wetland margins, flooded plains, and well-watered pastures in northern and eastern Australia. Grazes on land near water at night; rests on open ground or in trees during the day.
Song & Call Comparison
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Plumed Whistling-duck
A high, reedy whistling call similar to other Dendrocygna. Plumed Whistling-duck gives 'grassy' grassland calls. Less musical than White-faced; contact notes are short whistles.
Geographic Range & Migration
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
Plumed Whistling-duck
Breeds in the Holarctic tundra and boreal zones; winters on temperate coasts and large inland lakes globally.
Охранный статус
African Black Duck
Plumed Whistling-duck
How to Tell Them Apart
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
Plumed Whistling-duck
Pale brown head and neck; chestnut-brown back. Distinctive long, pale golden plumes extend from flanks. Breast pale pink with dark spots. Belly pale. Long pink legs. Upright posture. Sexes similar.
About These Birds
African Black Duck
A medium-sized dark brown duck with white spots on the back, a dark bill, and orange legs. Found along fast-flowing rocky rivers and streams in Africa. Territorial and monogamous; pairs defend stretches of river. Related to Pacific Black Duck.
Plumed Whistling-duck
A large whistling-duck with long buff flank plumes extending beyond the folded wings, brown body, pink bill, and upright posture. Endemic to Australia. Gregarious, forming large grazing flocks on grasslands near water. Feeds mainly on grasses and sedges rather than aquatic plants.