American Black Duck vs Common Goldeneye

Anas rubripes comparado con Bucephala clangula

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Side-by-Side Comparison

Atributo American Black Duck Common Goldeneye
Nombre científico Anas rubripes Bucephala clangula
Orden Anseriformes Anseriformes
Familia Anatidae Anatidae
Estado de conservación Least Concern Least Concern
Longitud
Envergadura 53,4 cm (21.0 in) 41,7 cm (16.4 in)
Peso 1211,25 g (42.73 oz) 921,0 g (32.49 oz)
Dieta Eats fish and aquatic invertebrates; dives in coastal and freshwater habitats; diet shifts toward molluscs … Dives for aquatic invertebrates, crustaceans, molluscs, and small fish. Forages in lakes, rivers, and coastal …
Tamaño de la puesta 1-17 1-28
Population Trend
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Habitat Comparison

Hábitats compartidos

American Black Duck only

Common Goldeneye only

Ninguno

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.

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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.

Common Goldeneye

Canto

Male emits a buzzy, insect-like zeee-zeee-zeee wing whistle; female gives a grating quack. The mechanical wing-whistle produced by the male in display flight is the species' most distinctive sound.

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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.

Common Goldeneye

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

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Estado de conservación

Least Concern

American Black Duck

Least Concern

Common Goldeneye

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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 …

Common Goldeneye

Plumaje

Male has glossy green-black head with round white spot at bill base; body white with black back and scapulars; yellow eye. Female has chocolate-brown head, white collar, and grey body.

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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.

Common Goldeneye

El pato chillón o porrón osculado es un pato buceador con el macho de cabeza redondeada verde-negro iridiscente y un pequeño parche blanco circular frente al ojo. Cría en bosques boreales de Europa, Asia y Norteamérica, anidando en cavidades de árboles. Cuando los patos vuelan, las alas producen un sonido silbante característico, de ahí su nombre en inglés 'goldeneye' (ojo dorado).

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