Brent Goose vs Velvet Scoter
Branta bernicla comparado con Melanitta fusca
Side-by-Side Comparison
| Atributo | Brent Goose | Velvet Scoter |
|---|---|---|
| Nombre científico | Branta bernicla | Melanitta fusca |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 51,8 cm (20.4 in) |
| Peso | 1335,0 g (47.09 oz) | 1635,1666666666667 g (57.68 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Dives for mussels, cockles, and crustaceans in coastal and brackish waters. Freshwater insects taken on … |
| Tamaño de la puesta | 1-10 | 7-9 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Brent Goose only
Ninguno
Velvet Scoter only
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.
Velvet Scoter
Male emits a low, melodious whistled note; female produces a guttural, rasping call. The male's soft whistle contrasts with the female's harsh, buzzy alarm call on European coasts.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Velvet Scoter
Breeds in boreal forests of northern Europe and western Siberia. Winters on coasts of northwestern Europe, the Black Sea, and Caspian Sea.
Estado de conservación
Brent Goose
Velvet Scoter
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.
Velvet Scoter
Male is jet black overall with a small white teardrop below eye and white speculum visible in flight; yellow-sided bill with black knob at base. Female is dark brown with …
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.
Velvet Scoter
El negrón especulado es el mayor negrón europeo, con el macho de color negro con una mancha blanca bajo el ojo y espéculo blanco en el ala. Cría en bosques boreales y tundra de Europa y Asia, e inverna en costas marinas, especialmente en el mar Báltico y el Atlántico norte. Se alimenta principalmente de mejillones y otros mariscos en sus cuarteles de invierno.