African Black Duck vs Orinoco Goose
Anas sparsa comparado con Neochen jubata
Side-by-Side Comparison
| Atributo | African Black Duck | Orinoco Goose |
|---|---|---|
| Nombre científico | Anas sparsa | Neochen jubata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Near Threatened |
| Longitud | — | — |
| Envergadura | 49,5 cm (19.5 in) | 59,6 cm (23.5 in) |
| Peso | 996,8333333333334 g (35.16 oz) | 1558,0 g (54.96 oz) |
| Dieta | -- | Eats grasses, seeds, and aquatic invertebrates; grazes wetland margins; takes molluscs and crustaceans in shallow … |
| Tamaño de la puesta | 4-9 | 6-10 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
African Black Duck only
Orinoco 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.
Orinoco Goose
Tropical rivers, river islands, sandy beaches, and adjacent gallery forest in the Amazon and Orinoco basins. Nests in tree cavities or on the ground near rivers. Associated with braided river channels.
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.
Orinoco Goose
A nasal 'honk-honk' call. Less frequently encountered than other South American waterfowl; calls from gallery forest beside major Orinoco tributaries during the breeding season.
Geographic Range & Migration
African Black Duck
Orinoco Goose
Bred on Amsterdam Island and possibly other sub-Antarctic islets. Extinct; flightless and confined to one small island.
Estado de conservación
African Black Duck
Orinoco 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 …
Orinoco Goose
Pale cream-buff head and neck; chestnut-brown breast and flanks. Back dark brown; belly pale cream. Wings with iridescent green speculum and white inner secondaries. Bill dark; legs reddish-orange. 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.
Orinoco Goose
La orinoquense o ganso del Orinoco es un ganso de América del Sur con la cabeza y el cuello de color canela claro y el cuerpo de color negro y blanco con partes de color castaño. Habita en orillas de ríos, lagunas y pantanos de la cuenca del Orinoco y el Amazonas, en Venezuela, Colombia, Brasil y el Perú. Es una especie poco común y está clasificada como casi amenazada.