Greater White-fronted Goose vs Comb Duck
Anser albifrons comparado con Sarkidiornis sylvicola
Side-by-Side Comparison
| Atributo | Greater White-fronted Goose | Comb Duck |
|---|---|---|
| Nombre científico | Anser albifrons | Sarkidiornis sylvicola |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 81,6 cm (32.1 in) | 60,9 cm (24.0 in) |
| Peso | 2471,0 g (87.16 oz) | 1817,5 g (64.11 oz) |
| Dieta | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Feeds on seeds, plant material, and invertebrates; dabbles and sifts shallow water; diet varies widely … |
| Tamaño de la puesta | 3-9 | -- |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Greater White-fronted Goose only
Comb 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.
Comb Duck
Freshwater lakes, rivers, flooded savannas, and seasonally inundated forest in lowland tropical South America from Panama south to Bolivia, Brazil, and northern Argentina. Nests in tree cavities near permanent water.
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.
Comb Duck
A soft, nasal 'wuk-wuk' call. Both sexes give similar quiet calls. Generally a less vocal duck than most waterfowl. Gives a rattling wingbeat sound during flight.
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.
Comb Duck
Breeds in the prairie pothole region of central North America; winters along the Pacific coast from Alaska to Mexico.
Estado de conservación
Greater White-fronted Goose
Comb 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 …
Comb Duck
Males have white head densely spotted black; black back with blue-green iridescence; white underparts with gray flanks. Prominent black fleshy knob on bill. Females smaller, duller, lack knob. South American.
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.
Comb Duck
El pato crestudo del Nuevo Mundo o pato jorobado es un gran pato arbóreo de América del Sur y Central con el macho presentando una característica protuberancia o joroba de color negro sobre el pico. El plumaje es negro iridiscente en el dorso y blanco en las partes inferiores. Habita en pantanos boscosos y lagunas en bosques tropicales. Es el pato más grande de América del Sur.