Brent Goose vs Upland Goose
Branta bernicla comparado con Chloephaga picta
Side-by-Side Comparison
| Atributo | Brent Goose | Upland Goose |
|---|---|---|
| Nombre científico | Branta bernicla | Chloephaga picta |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 82,4 cm (32.4 in) |
| Peso | 1335,0 g (47.09 oz) | 2916,0 g (102.86 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | -- |
| Tamaño de la puesta | 1-10 | 5-8 |
| 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.
Upland Goose
Open Patagonian grasslands, steppe, and agricultural pastures in southern Chile and Argentina, including the Falkland Islands. Grazes on short grass. Males aggressively defend territories. Partially migratory.
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.
Upland Goose
Male gives a high, whistled 'whew'; female gives a low, rolling cackle 'ga-ga-ga'. Sexual differences in call are pronounced. Falklands and Patagonian populations highly vocal.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Upland Goose
Estado de conservación
Brent Goose
Upland 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.
Upland Goose
Pronounced dimorphism. Males white with black-barred flanks and white wings with black primaries. Females rufous-brown with black-barred flanks and white belly. Both sexes yellow-orange legs. Grassland species.
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.
Upland Goose
El cauquén común o ganso magallánico es un ganso del sur de América del Sur con marcado dimorfismo sexual: el macho es blanco con un barreado negro, y la hembra es de color castaño barrado. Habita en pastizales abiertos, campos cultivados y costas marinas desde el sur de Argentina y Chile hasta las Islas Malvinas. Es una especie abundante en la Patagonia.