Brent Goose vs Marbled Duck
Branta bernicla comparado con Marmaronetta angustirostris
Side-by-Side Comparison
| Atributo | Brent Goose | Marbled Duck |
|---|---|---|
| Nombre científico | Branta bernicla | Marmaronetta angustirostris |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Near Threatened |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 40,1 cm (15.8 in) |
| Peso | 1335,0 g (47.09 oz) | 422,5 g (14.90 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | -- |
| Tamaño de la puesta | 1-10 | 5-20 |
| 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.
Marbled Duck
Shallow densely vegetated freshwater and brackish marshes, rice paddies, and lagoons in the Mediterranean basin, Middle East, and Central Asia. Winters in Africa and South Asia. Dependent on emergent wetland vegetation.
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.
Marbled Duck
Male gives a low, guttural chuckling; female produces a nasal, rattling quack. Calls are relatively quiet for a duck; the chuckling male call is unusual among Eurasian and North African …
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Marbled Duck
Estado de conservación
Brent Goose
Marbled Duck
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.
Marbled Duck
Pale sandy-buff plumage with bold white spots throughout; distinctive marbled pattern. Dark eye patch forming mask. Pale face and throat. No iridescent speculum. Gray bill; gray legs. Sexes similar. Mediterranean …
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.
Marbled Duck
A pale sandy-buff duck with distinctive marbled dark and light brown spotting on body and wings, a dark eyepatch, and pale bill. Found in Mediterranean scrub-wetlands and Middle Eastern marshes. Migratory; breeds in southern Europe and central Asia, winters in sub-Saharan Africa and South Asia.