Brent Goose vs Bufflehead
Branta bernicla comparado con Bucephala albeola
Side-by-Side Comparison
| Atributo | Brent Goose | Bufflehead |
|---|---|---|
| Nombre científico | Branta bernicla | Bucephala albeola |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 32,2 cm (12.7 in) |
| Peso | 1335,0 g (47.09 oz) | 400,5 g (14.13 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Dives for aquatic insects, crustaceans, and small molluscs in freshwater and coastal habitats. One of … |
| Tamaño de la puesta | 1-10 | 5-14 |
| 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.
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.
Bufflehead
Male produces a soft, squeaky whistle; female gives a harsh, nasal quack. The male's thin, reedy whistle is barely audible; pairs exchange quiet contact calls at boreal forest ponds.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Bufflehead
Breeds in boreal forest of western and central North America. Winters along both coasts and interior lakes from southern Canada south to Mexico.
Estado de conservación
Brent Goose
Bufflehead
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.
Bufflehead
Male has iridescent green-purple head with a large triangular white patch from behind eye over crown; body clean white except for black back. Female is dark sooty-brown with a single …
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.
Bufflehead
El pato bufón o porrón albeola es el pato buceador más pequeño de América del Norte. El macho tiene un llamativo parche blanco en la nuca de la cabeza negro-verde iridiscente. Cría en cavidades de árboles cerca de lagos y estanques boscosos en Norteamérica, siendo uno de los pocos patos que anidan en huecos de árboles. Inverna principalmente en costas marinas.