Brent Goose vs King Eider
Branta bernicla comparado con Somateria spectabilis
Side-by-Side Comparison
| Atributo | Brent Goose | King Eider |
|---|---|---|
| Nombre científico | Branta bernicla | Somateria spectabilis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 53,3 cm (21.0 in) |
| Peso | 1335,0 g (47.09 oz) | 1507,5 g (53.18 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Dives for sea urchins, molluscs, and crustaceans in Arctic coastal waters. Shifts to freshwater invertebrates … |
| Tamaño de la puesta | 1-10 | 1-16 |
| Population Trend | — | — |
Habitat Comparison
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.
Song & Call Comparison
Brent Goose
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.
King Eider
Male produces a melodious, ascending ooo-wuh cooing; female gives a guttural grunt. The male's haunting, dove-like call is one of the most atmospheric sounds of the High Arctic in spring.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
King Eider
Circumpolar High Arctic breeder in North America, Greenland, Svalbard, and Russia. Winters at sea in the North Atlantic and Bering Sea.
Estado de conservación
Brent Goose
King Eider
How to Tell Them Apart
Brent Goose
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.
King Eider
Male has bluish-grey crown, pale greenish cheeks, vivid orange-red frontal shield, black back and wings, and white breast patch. Female is warm rufous-brown with dark crescentic barring throughout.
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.
King Eider
El eider real es un gran pato marítimo ártico en el que el macho tiene un plumaje de cría espectacular con la cabeza de múltiples colores: azul-grisáceo, rosa y verde, con un prominente escudo frontal naranja. Cría en la tundra ártica y pasa el invierno en costas marinas, a menudo en aguas heladas. Forma grandes bandadas en el invierno que pueden contar con decenas de miles de individuos.