Brent Goose vs West Indian Whistling-duck
Branta bernicla comparado con Dendrocygna arborea
Side-by-Side Comparison
| Atributo | Brent Goose | West Indian Whistling-duck |
|---|---|---|
| Nombre científico | Branta bernicla | Dendrocygna arborea |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Near Threatened |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 51,3 cm (20.2 in) |
| Peso | 1335,0 g (47.09 oz) | 1030,0 g (36.33 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Eats grasses, sedges, and grains; migratory goose foraging in Arctic tundra in summer; overwinters on … |
| Tamaño de la puesta | 1-10 | 4-16 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Brent Goose only
West Indian Whistling-duck only
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.
West Indian Whistling-duck
Freshwater lakes, mangrove swamps, palm savannas, and forested wetlands in the Greater and Lesser Antilles. Nests in palm crowns and hollow trees. Highly dependent on Caribbean wet forests and freshwater lagoons.
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.
West Indian Whistling-duck
A loud, 3-syllable whistle 'whee-whee-whee'. The NT conservation status reflects population pressures. Less commonly heard than its more abundant whistling-duck relatives.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
West Indian Whistling-duck
Found in grassy wetlands and floodplains of Madagascar. Non-migratory and endemic to the island's eastern marshes.
Estado de conservación
Brent Goose
West Indian Whistling-duck
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.
West Indian Whistling-duck
Dark brown upperparts; head and neck dark with pale sides. Flanks black with bold white spots. Breast dark brown; belly blackish with white flank streaks. Long dark legs. Largest Dendrocygna. …
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.
West Indian Whistling-duck
El pato silbador del Caribe o pato silbador cubano es el mayor de los patos silbadores y está restringido al Caribe. Tiene plumaje marrón oscuro con la cabeza más pálida y manchas negras y blancas en los flancos. Habita en manglares, bosques costeros y palmares, anidando en palmeras. Está clasificado como vulnerable por la caza y la pérdida de hábitat.