African Black Duck vs Red-breasted Merganser
Anas sparsa comparado con Mergus serrator
Side-by-Side Comparison
| Atributo | African Black Duck | Red-breasted Merganser |
|---|---|---|
| Nombre científico | Anas sparsa | Mergus serrator |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 49,5 cm (19.5 in) | 46,7 cm (18.4 in) |
| Peso | 996,8333333333334 g (35.16 oz) | 1058,3333333333333 g (37.33 oz) |
| Dieta | -- | Dives for small fish, crustaceans, and aquatic invertebrates in coastal and freshwater habitats. Pursues fish … |
| Tamaño de la puesta | 4-9 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
African Black Duck only
Ninguno
Red-breasted Merganser 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.
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.
Red-breasted Merganser
Male produces a harsh, rasping series of notes; female gives a rough, guttural grunting. The harsh, rattling call is louder than Goosander; pairs and flocks create a rasping coastal cacophony.
Geographic Range & Migration
African Black Duck
Red-breasted Merganser
Circumpolar breeder in boreal and Arctic zones. Winters on coasts and large water bodies south to the Mediterranean and southern Asia.
Estado de conservación
African Black Duck
Red-breasted Merganser
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 …
Red-breasted Merganser
Male has dark green shaggy double crest, speckled chestnut breast band, white collar, and grey flanks; red bill. Female has rufous-brown head with ragged crest blending gradually into grey neck …
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.
Red-breasted Merganser
El serrano o merganso mediano es un merganso de tamaño mediano con el macho de cabeza verde con un desordenado moño y el pecho manchado de castaño. Ampliamente distribuido en el hemisferio norte, cría principalmente en costas marinas y grandes lagos, siendo uno de los pocos mergansos que cría regularmente en ambientes costeros. Inverna en costas marinas de mares templados.