Brent Goose vs Trumpeter Swan
Branta bernicla comparado con Cygnus buccinator
Side-by-Side Comparison
| Atributo | Brent Goose | Trumpeter Swan |
|---|---|---|
| Nombre científico | Branta bernicla | Cygnus buccinator |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 125,1 cm (49.3 in) |
| Peso | 1335,0 g (47.09 oz) | 9975,0 g (351.86 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Dabbles for seeds, invertebrates, and aquatic plants in shallow water; diet shifts between plant-rich and … |
| Tamaño de la puesta | 1-10 | 1-9 |
| 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.
Trumpeter Swan
Large deep-water lakes, slow rivers, and wetland complexes in western and interior North America from Alaska and Canada south to Oregon. Winters on ice-free rivers and coastal estuaries.
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.
Trumpeter Swan
A deep, resonant, French-horn-like bugling 'oh-OH-oh'. The most musical of North American swans. Pairs sing in duet. Very different from the thin whistle of smaller swans.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Trumpeter Swan
Breeds in Alaska and northern Canada; winters along the Pacific and Atlantic coasts from the southern United States to Mexico.
Estado de conservación
Brent Goose
Trumpeter Swan
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.
Trumpeter Swan
Entirely snow-white plumage in adults. All-black bill lacking yellow patch. Large size; heaviest North American bird. Neck held straight. Juveniles gray-brown, becoming white by second year. Sexes similar.
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.
Trumpeter Swan
El cisne trompetero es el ave más pesada nativa de América del Norte y el cisne más grande del mundo. Se reconoce por el completamente negro pico y el cuello muy largo. Cría en humedales del oeste de Canadá y el noroeste de Estados Unidos. Fue cazado casi hasta la extinción para usar sus plumas en la confección de plumas de escribir y su carne como alimento, pero se ha recuperado gracias a la protección.