African Black Duck vs Goosander

Anas sparsa comparado con Mergus merganser

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Side-by-Side Comparison

Atributo African Black Duck Goosander
Nombre científico Anas sparsa Mergus merganser
Orden Anseriformes Anseriformes
Familia Anatidae Anatidae
Estado de conservación Least Concern Least Concern
Longitud
Envergadura 49,5 cm (19.5 in) 54,2 cm (21.3 in)
Peso 996,8333333333334 g (35.16 oz) 1488,0 g (52.49 oz)
Dieta Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … Dives for fish, especially salmon and trout, in rivers and lakes. Also takes frogs, crustaceans, …
Tamaño de la puesta 4-9 4-22
Population Trend
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Habitat Comparison

Hábitats compartidos

African Black Duck only

Ninguno

Goosander 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.

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Song & Call Comparison

African Black Duck

Canto

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.

Goosander

Canto

Male gives a harsh, crow-like karrr call; female produces a guttural, grunting series. Both sexes produce loud, nasal calls; the male's harsh croaking is a distinctive winter river sound.

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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.

Goosander

Breeds across boreal forests of North America, Europe, and Asia. Winters on coasts and large rivers south to the Mediterranean and South Asia.

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Estado de conservación

Least Concern

African Black Duck

Least Concern

Goosander

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How to Tell Them Apart

African Black Duck

Plumaje

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 …

Goosander

Plumaje

Male has dark green iridescent head, salmon-pink suffused white body, and black back; red serrated bill. Female has rufous-brown head with neat white chin patch, grey body, and pinkish-buff breast.

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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.

Goosander

El mergo mayor o serreta grande es el mayor de los mergansos, con el macho de cabeza verde-negro brillante y el cuerpo blanco con la espalda negra. Habita en ríos y lagos de agua clara en bosques boreales y montañosos del hemisferio norte. Es un experto pescador que captura peces grandes sumergiéndose; en los ríos, puede perseguir peces salmónidos de gran tamaño.

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