Brent Goose vs Maccoa Duck
Branta bernicla comparado con Oxyura maccoa
Side-by-Side Comparison
| Atributo | Brent Goose | Maccoa Duck |
|---|---|---|
| Nombre científico | Branta bernicla | Oxyura maccoa |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Endangered |
| Longitud | — | — |
| Envergadura | 63,9 cm (25.2 in) | 31,3 cm (12.3 in) |
| Peso | 1335,0 g (47.09 oz) | 685,3333333333334 g (24.17 oz) |
| Dieta | Primarily herbivorous; grazes aquatic plants, grasses, and sedges; swans upend in shallow water for submerged … | Dives for aquatic invertebrates and plant seeds in African lakes and marshes. Uses lobed feet … |
| Tamaño de la puesta | 1-10 | 4-12 |
| 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.
Maccoa Duck
Male emits a rapid, staccato drumming display; female gives a harsh, emphatic quack. The drumming call is powerful and diagnostic; this endangered southern African stiff-tail displays at dawn.
Geographic Range & Migration
Brent Goose
Breeds across boreal and subarctic Canada and Alaska; winters in the southern United States, Mexico, and Central America.
Maccoa Duck
Resident in eastern and southern Africa from Ethiopia and Kenya south to the Cape. Found on lakes and marshes with dense aquatic vegetation.
Estado de conservación
Brent Goose
Maccoa 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.
Maccoa Duck
Male has glossy black head, deep chestnut-red body, and vivid sky-blue bill; stiff tail often cocked. Female is dark brown above with streaked buff below and two pale facial stripes …
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.
Maccoa Duck
El pato maccoa es un pato de cola tiesa de África oriental y meridional con el macho de llamativo pico azul brillante y cabeza y cuello de color negro intenso. Habita en lagos y pantanos de agua salobre y dulce, especialmente ricos en algas y zooplancton. La hembra es de color marrón oscuro con rayas faciales. Está clasificado como vulnerable.