African Black Duck vs Cape Barren Goose
Anas sparsa comparado con Cereopsis novaehollandiae
Side-by-Side Comparison
| Atributo | African Black Duck | Cape Barren Goose |
|---|---|---|
| Nombre científico | Anas sparsa | Cereopsis novaehollandiae |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 49,5 cm (19.5 in) | 94,2 cm (37.1 in) |
| Peso | 996,8333333333334 g (35.16 oz) | 3816,6666666666665 g (134.63 oz) |
| Dieta | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Grazes aquatic vegetation and submerged plants; largest Southern Hemisphere swan; winters on estuaries eating eelgrass … |
| Tamaño de la puesta | 4-9 | 3-6 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
African Black Duck only
Ninguno
Cape Barren 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.
Cape Barren Goose
Open grasslands, heathlands, and low scrub on offshore islands and coastal mainland of southern Australia. Grazes in open areas. Nests on the ground. Largely sedentary with some mainland movements in winter.
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.
Cape Barren Goose
A loud, grunting 'honk-honk' from both sexes. The Cape Barren Goose gives pig-like grunting and cackling sounds. Not musical; its calls are distinctive but harsh.
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.
Cape Barren Goose
Breeds in northern North America; winters in the Great Basin, Great Plains, and coastal areas of the contiguous United States.
Estado de conservación
African Black Duck
Cape Barren 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 …
Cape Barren Goose
Pale ash-gray plumage with small dark spots on wing coverts. Head whitish-gray. Bill short with prominent lime-green cere. Legs and feet pinkish-red. Sexes similar; one of few native Australian geese.
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.
Cape Barren Goose
El ganso de Nueva Holanda o pato ceniciento es un ganso endémico de Australia con plumaje gris con manchas negras en las alas y el dorso. Es inusual entre los gansos por tener el pico pequeño y amarillo verdoso con la punta negra. Habita en islas y costas del sur de Australia, donde pasta hierba en grupos. Tiene una larga esperanza de vida para un ave de su tamaño.