African Black Duck vs Pink-footed Goose
Anas sparsa comparado con Anser brachyrhynchus
Side-by-Side Comparison
| Atributo | African Black Duck | Pink-footed Goose |
|---|---|---|
| Nombre científico | Anas sparsa | Anser brachyrhynchus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 49,5 cm (19.5 in) | 86,4 cm (34.0 in) |
| Peso | 996,8333333333334 g (35.16 oz) | 2590,0 g (91.36 oz) |
| Dieta | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Grazes grasses and aquatic plants near rivers; takes invertebrates in breeding season; nomadic in response … |
| Tamaño de la puesta | 4-9 | 2-8 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
African Black Duck only
Pink-footed Goose 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.
Pink-footed Goose
Breeds on tundra and cliff ledges in Greenland, Iceland, and Svalbard. Winters on agricultural fields, saltmarshes, and estuaries in Scotland, England, Netherlands, and Denmark.
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.
Pink-footed Goose
A musical, high-pitched 'wink-wink' — noticeably higher and more musical than Greylag or Bean Goose. The 'wink' call is a reliable identification feature in winter flocks.
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.
Pink-footed Goose
Breeds on Arctic and sub-Arctic tundra ponds across North America; winters on both US coasts and Gulf Coast estuaries.
Estado de conservación
African Black Duck
Pink-footed 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 …
Pink-footed Goose
Dark brown head and neck. Back grayish-brown; underparts pale gray. Diagnostic pink feet and pink-banded dark bill. Pale blue-gray forewing in flight. Compact and round-headed. Sexes similar.
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.
Pink-footed Goose
El ansar piquicorto es un ganso mediano de color gris-marrón con el pico corto de color negro con una banda rosada y las patas de color rosado-naranja. Cría en Islandia, Groenlandia y las islas Svalbard y pasa el invierno en las costas y campos cultivados del noroeste de Europa, especialmente en el Reino Unido y los Países Bajos. Es una especie de cría colonial en zonas montañosas.