Brent Goose vs Canada Goose
Branta bernicla comparado con Branta canadensis
Side-by-Side Comparison
| Atributo | Brent Goose | Canada Goose |
|---|---|---|
| Nombre científico | Branta bernicla | Branta canadensis |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 84,6 cm (33.3 in) |
| Peso | 1335,0 g (47.09 oz) | 4906,599999999999 g (173.08 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Grazes aquatic vegetation and grasses in Arctic tundra; migrates south to winter on estuaries eating … |
| Tamaño de la puesta | 1-10 | 1-8 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Brent Goose only
Ninguno
Canada 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.
Canada Goose
Lakes, rivers, ponds, parks, golf courses, agricultural fields, and coastal marshes across North America. Breeds on ground near water. Many populations now resident year-round in temperate urban areas.
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.
Canada Goose
A loud, resonant 'a-honk' or 'hrr-onk'. Flocks produce a constant clamoring honk during migration. Also gives softer cackling contact calls. One of the most recognizable bird sounds.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Canada Goose
Breeds across Canada and Alaska; winters from the contiguous US to northern Mexico. Introduced populations resident in Europe and New Zealand.
Estado de conservación
Brent Goose
Canada 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.
Canada Goose
Black head and long neck with bold white chin strap. Back and wings brown-gray; underparts pale tan to white on belly. White undertail coverts. Tail black. Large and familiar; sexes …
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.
Canada Goose
El barnacla canadiense es uno de los gansos más conocidos de América del Norte, reconocible por el cuello y la cabeza negros con las mejillas blancas. Ha sido introducido en Europa, donde forma poblaciones silvestres. Cría en una amplia variedad de hábitats, desde la tundra ártica hasta las zonas suburbanas, siendo uno de los animales que mejor se ha adaptado a los entornos modificados por el hombre.