Greater White-fronted Goose vs Harlequin Duck
Anser albifrons comparado con Histrionicus histrionicus
Side-by-Side Comparison
| Atributo | Greater White-fronted Goose | Harlequin Duck |
|---|---|---|
| Nombre científico | Anser albifrons | Histrionicus histrionicus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 81,6 cm (32.1 in) | 38,8 cm (15.3 in) |
| Peso | 2471,0 g (87.16 oz) | 553,0 g (19.51 oz) |
| Dieta | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Forages in fast-flowing streams for aquatic insect larvae, amphipods, and small fish. Dives and clings … |
| Tamaño de la puesta | 3-9 | 3-9 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Greater White-fronted Goose only
Harlequin Duck only
Ninguno
Greater White-fronted Goose
Breeds on Arctic and subarctic tundra and peatlands. Winters on estuaries, agricultural fields, freshwater marshes, and flooded meadows across Europe, Asia, and North America. One of the most widespread geese.
Song & Call Comparison
Greater White-fronted Goose
A loud, laughing 'kow-lyuk' or musical 'wah-wah'. Gives a distinctive high-pitched yodeling quality lacking in Greylag. Highly vocal in large winter flocks.
Harlequin Duck
Male gives a squeaky, mouse-like squeal; female produces a guttural, grunting call. The male's bizarre, high-pitched squealing call is completely unexpected in such a compact seaduck.
Geographic Range & Migration
Greater White-fronted Goose
Breeds in the potholes region of the northern Great Plains; winters in the southern United States and along the Gulf Coast.
Harlequin Duck
Breeds on fast-flowing rivers in Iceland, Greenland, and northern North America. Winters along rocky Pacific and Atlantic coasts south to California.
Estado de conservación
Greater White-fronted Goose
Harlequin Duck
How to Tell Them Apart
Greater White-fronted Goose
Brown-gray body with white forehead patch bordered by white band at bill base. Underparts with bold irregular black bars on belly. Orange bill; orange-yellow legs. Juveniles lack white front and …
Harlequin Duck
Male is slate-blue with bold white crescent before eye, white spots and streaks on head, neck, and scapulars, and rich chestnut flanks. Female is dark sooty-brown with three white facial …
About These Birds
Greater White-fronted Goose
El ánsar careto o ganso careto mayor es un ganso mediano de color pardo con una llamativa mancha blanca en la frente y barras negras en el vientre. Tiene un amplio rango de cría en la tundra ártica del hemisferio norte y migra a zonas templadas de Europa, Asia y América del Norte para pasar el invierno, donde a menudo se reúne en grandes bandadas en campos agrícolas.
Harlequin Duck
El pato arlequín es un espectacular pato de agua dulce con el macho de color azul-gris con parches blancos y castaños bordeados de negro, recordando el traje de un arlequín. Habita en ríos y arroyos de montaña de aguas rápidas e impetuosas durante la temporada reproductora, siendo uno de los pocos patos adaptados a la vida en torrentes de montaña. Inverna en costas rocosas.