Brent Goose vs Barnacle Goose
Branta bernicla comparado con Branta leucopsis
Side-by-Side Comparison
| Atributo | Brent Goose | Barnacle Goose |
|---|---|---|
| Nombre científico | Branta bernicla | Branta leucopsis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 76,4 cm (30.1 in) |
| Peso | 1335,0 g (47.09 oz) | 1685,0 g (59.44 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Large white swan grazing aquatic plants and grasses; upends for submerged vegetation; supplements diet with … |
| Tamaño de la puesta | 1-10 | 2-9 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Brent Goose only
Ninguno
Barnacle 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.
Barnacle Goose
Breeds on inaccessible Arctic cliff ledges in Greenland, Svalbard, and Novaya Zemlya. Winters on coastal saltmarshes, pastures, and estuaries in northwestern Europe, particularly Scotland and Ireland.
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.
Barnacle Goose
A rapid, high-pitched barking 'uk-uk-uk' given rapidly in flocks. Higher-pitched and more rapid than Canada Goose. Migrating flocks create a constant excited barking chorus.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Barnacle Goose
Breeds in Arctic tundra of Alaska and Canada; winters on the Pacific and Atlantic coasts of the United States and northern Mexico.
Estado de conservación
Brent Goose
Barnacle Goose
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.
Barnacle Goose
Striking black, white and gray pattern. White face and forehead; black crown, neck, and upper breast. Gray back with black and white barring. White underparts. Black tail. Sexes similar; elegant …
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.
Barnacle Goose
El barnacla cariblanca es un ganso mediano de las zonas árticas con el rostro blanco, la corona y el cuello negro brillante y el cuerpo gris barrado. Cría en acantilados de islas árticas de Groenlandia, Svalbard y la isla de Novaya Zemlya, y pasa el invierno en prados costeros del noroeste de Europa. Es una especie de conservación favorable, con poblaciones en expansión.