African Black Duck vs Taiga Bean Goose
Anas sparsa comparado con Anser fabalis
Side-by-Side Comparison
| Atributo | African Black Duck | Taiga Bean Goose |
|---|---|---|
| Nombre científico | Anas sparsa | Anser fabalis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 49,5 cm (19.5 in) | 89,7 cm (35.3 in) |
| Peso | 996,8333333333334 g (35.16 oz) | 3115,0 g (109.88 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 4-9 | 3-8 |
| Population Trend | — | — |
Habitat Comparison
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.
Taiga Bean Goose
Breeds in taiga forest, boggy clearings, and river valleys across Scandinavia and northern Russia. Winters on agricultural fields, pastures, and river valleys in western and central Europe, particularly Belgium and the Netherlands.
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.
Taiga Bean Goose
A low, nasal 'ung-unk' or 'ow' call — less nasal than Grey-lag. Flocks give continuous calling. The call distinction from Tundra Bean Goose is subtle but detectable.
Estado de conservación
African Black Duck
Taiga Bean Goose
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 …
Taiga Bean Goose
Dark brown head and neck; back dark brown with pale feather edges giving scalloped appearance. Underparts pale gray-brown. Bill orange-yellow with black base and tip. Orange legs. Darker than Pink-footed …
About These Birds
African Black Duck
El pato africano moteado es un pato de tamaño mediano de color marrón oscuro con motas blancas en el pecho y los flancos. Habita en ríos de rápido caudal, cascadas y arroyos de montaña en África central y meridional, siendo inusual entre los patos por su preferencia por aguas corrientes y turbulentas. También se encuentra en altitudes elevadas en las zonas montañosas de África oriental.
Taiga Bean Goose
El ansar campestre es un ganso de cuello largo de color marrón oscuro con el pico negro y naranja. Cría en la taiga y la tundra del norte de Europa y Asia, y migra al sur para pasar el invierno en campos de cultivo y praderas de Europa occidental y Asia oriental. Se alimenta principalmente de hierbas, cereales y raíces en sus zonas de invernada.