Tufted Duck vs Brent Goose
Aythya fuligula comparado con Branta bernicla
Side-by-Side Comparison
| Atributo | Tufted Duck | Brent Goose |
|---|---|---|
| Nombre científico | Aythya fuligula | Branta bernicla |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 39,4 cm (15.5 in) | 63,9 cm (25.2 in) |
| Peso | 700,0 g (24.69 oz) | 1335,0 g (47.09 oz) |
| Dieta | Dives for molluscs, crustaceans, and aquatic invertebrates; diet dominated by hard-shelled benthic prey in coastal … | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … |
| Tamaño de la puesta | 3-22 | 1-10 |
| Population Trend | — | — |
Habitat Comparison
Tufted Duck
Breeds on freshwater lakes and rivers with emergent vegetation across Eurasia from Iceland and western Europe east to Siberia and Japan. Winters on large open lakes, reservoirs, and sheltered coastal bays.
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
Tufted Duck
Male emits a soft, low wheeze; female gives a grating, repeated quack. A common call on Eurasian freshwater lakes; male's soft purring is quiet while female's quacking is emphatic and …
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.
Geographic Range & Migration
Tufted Duck
Breeds in sub-Arctic and boreal Canada; winters along the Atlantic coast and in the Caribbean. Rare elsewhere in winter.
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Estado de conservación
Tufted Duck
Brent Goose
How to Tell Them Apart
Tufted Duck
Males black with white flanks; rounded head with long drooping black tuft. Yellow eye. Females dark brown with shorter tuft; pale flanks; sometimes white at base of bill. Bold white …
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.
About These Birds
Tufted Duck
El porrón moñudo es un pato buceador fácilmente reconocible por el largo mechón negro que cae desde la nuca del macho. El macho es de color negro brillante con los flancos blancos; la hembra es de color marrón oscuro con un mechón más corto. Ampliamente distribuido por Europa y Asia, habita en lagos, embalses y ríos de corriente lenta.
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.