Brent Goose vs Spur-winged Goose

Branta bernicla comparado con Plectropterus gambensis

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Side-by-Side Comparison

Atributo Brent Goose Spur-winged Goose
Nombre científico Branta bernicla Plectropterus gambensis
Orden Anseriformes Anseriformes
Familia Anatidae Anatidae
Estado de conservación Least Concern Least Concern
Longitud
Envergadura 63,9 cm (25.2 in) 104,5 cm (41.1 in)
Peso 1335,0 g (47.09 oz) 4475,0 g (157.85 oz)
Dieta Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … Eats seeds, invertebrates, and aquatic plants; dabbles in shallow water; omnivorous diet shifts with breeding …
Tamaño de la puesta 1-10 6-14
Population Trend
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Habitat Comparison

Hábitats compartidos

Brent Goose only

Spur-winged Goose only

Ninguno

Brent Goose

Breeds on high-Arctic tundra; winters on estuaries, coastal mudflats, saltmarshes, and sea-grass beds along Atlantic and Pacific coastlines. One of the most strictly coastal wintering geese.

Spur-winged Goose

Freshwater lakes, marshes, rivers, and flooded grasslands across sub-Saharan Africa from the Sahel to South Africa. Feeds along wetland margins and on agricultural land near water. Nests on the ground.

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Song & Call Comparison

Brent Goose

Canto

A low, guttural 'rronk' or 'ronk-ronk' from flocks. Soft nasal calls in feeding groups. A subtle, understated call for a goose — less loud than most Anser geese.

Spur-winged Goose

Canto

A harsh, goose-like clucking 'uk-uk-uk' in flight. Males give a whistling hiss. Large and ungainly; its loud wing beats and harsh calls are characteristic of savanna wetlands.

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Geographic Range & Migration

Brent Goose

Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.

Spur-winged Goose

Breeds across Alaska and Canada in wetlands; winters along the Pacific coast from the Aleutians to Baja California.

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Estado de conservación

Least Concern

Brent Goose

Least Concern

Spur-winged Goose

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How to Tell Them Apart

Brent Goose

Plumaje

Small; mostly black head, neck, and breast. Small white neck-patch on adults. Back dark brownish-gray; belly pale gray to white depending on subspecies. White undertail coverts. Sexes similar.

Spur-winged Goose

Plumaje

Large; black upperparts with glossy green and purple iridescence. White forehead patch, facial skin reddish, and white underparts. Males have larger red facial caruncle and bill knob than females. Spur …

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About These Birds

Brent Goose

El barnacla brenta o barnacla negruzca es un pequeño ganso marino de color negro y gris oscuro con un pequeño parche blanco a los lados del cuello. Cría en la tundra ártica y migra a zonas costeras templadas del hemisferio norte en invierno, donde se alimenta principalmente de zostera, un tipo de hierba marina. Es el único ganso que pasa el invierno en ambientes exclusivamente marinos.

Spur-winged Goose

El pato espolonado o ganso espolonado africano es el pato más pesado del África subsahariana. El macho tiene el plumaje negro iridiscente con el vientre blanco y la cara con carúnculas rojas. Su nombre alude a los espolones que tiene en los hombros de las alas, usados en combate. Habita en ríos, lagunas y pantanos de África, anidando en árboles o en el suelo.

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