American Black Duck vs Barnacle Goose

Anas rubripes comparado con Branta leucopsis

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Side-by-Side Comparison

Atributo American Black Duck Barnacle Goose
Nombre científico Anas rubripes Branta leucopsis
Orden Anseriformes Anseriformes
Familia Anatidae Anatidae
Estado de conservación Least Concern Least Concern
Longitud
Envergadura 53,4 cm (21.0 in) 76,4 cm (30.1 in)
Peso 1211,25 g (42.73 oz) 1685,0 g (59.44 oz)
Dieta Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … Large white swan grazing aquatic plants and grasses; upends for submerged vegetation; supplements diet with …
Tamaño de la puesta 1-17 2-9
Population Trend
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Habitat Comparison

Hábitats compartidos

American Black Duck only

Barnacle Goose only

American Black Duck

Freshwater and brackish wetlands in eastern North America from Atlantic Canada south along the coast to Georgia. Breeds in northern bogs and wetlands. Winters on coastal marshes, estuaries, and freshwater lakes.

Barnacle Goose

Breeds on inaccessible Arctic cliff ledges in Greenland, Svalbard, and Novaya Zemlya. Winters on coastal saltmarshes, pastures, and estuaries in northwestern Europe, particularly Scotland and Ireland.

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Song & Call Comparison

American Black Duck

Canto

Female produces a loud, deep quacking series; male gives a low, raspy grunt. Voice is deeper and huskier than a Mallard; pairs call powerfully across northeastern North American wetlands.

Barnacle Goose

Canto

A rapid, high-pitched barking 'uk-uk-uk' given rapidly in flocks. Higher-pitched and more rapid than Canada Goose. Migrating flocks create a constant excited barking chorus.

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Geographic Range & Migration

American Black Duck

Breeds in the steppe zone of Central Asia; winters in South Asia, East Africa, and coastal Southeast Asia.

Barnacle Goose

Breeds in Arctic tundra of Alaska and Canada; winters on the Pacific and Atlantic coasts of the United States and northern Mexico.

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Estado de conservación

Least Concern

American Black Duck

Least Concern

Barnacle Goose

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How to Tell Them Apart

American Black Duck

Plumaje

Sooty dark brown body; head and neck paler buff with dark streaking. Iridescent purple speculum without white border. Males have yellow-green bill; females olive with orange blotches. Silvery underwings in …

Barnacle Goose

Plumaje

Striking black, white and gray pattern. White face and forehead; black crown, neck, and upper breast. Gray back with black and white barring. White underparts. Black tail. Sexes similar; elegant …

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About These Birds

American Black Duck

El pato negro americano es un gran pato de color marrón muy oscuro con una cabeza más clara y un llamativo espéculo alar púrpura. Habita en humedales del este de Norteamérica y se está hibridando cada vez más con el pato de collar introducido en su rango, lo que representa una amenaza para su pureza genética. Prefiere marismas costeras, pantanos boscosos y lagos tranquilos.

Barnacle Goose

El barnacla cariblanca es un ganso mediano de las zonas árticas con el rostro blanco, la corona y el cuello negro brillante y el cuerpo gris barrado. Cría en acantilados de islas árticas de Groenlandia, Svalbard y la isla de Novaya Zemlya, y pasa el invierno en prados costeros del noroeste de Europa. Es una especie de conservación favorable, con poblaciones en expansión.

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