Greater White-fronted Goose vs Ring-necked Duck
Anser albifrons comparado con Aythya collaris
Side-by-Side Comparison
| Atributo | Greater White-fronted Goose | Ring-necked Duck |
|---|---|---|
| Nombre científico | Anser albifrons | Aythya collaris |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 81,6 cm (32.1 in) | 39,0 cm (15.4 in) |
| Peso | 2471,0 g (87.16 oz) | 825,5 g (29.12 oz) |
| Dieta | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in shallow coastal water; diet dominated by benthic … |
| Tamaño de la puesta | 3-9 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Greater White-fronted Goose only
Ring-necked Duck only
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.
Ring-necked Duck
Breeds on boreal lakes and bogs in North America from Alaska and Canada south to the northern United States. Winters on freshwater lakes, reservoirs, and marshes across the southern United States, Mexico, and Caribbean.
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.
Ring-necked Duck
Male produces a low, purring wheeze; female gives a harsh, rolling quack. The purring male call is understated; found on North American freshwater lakes; female calls are emphatic and nasal.
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.
Ring-necked Duck
Breeds in western Arctic Canada and Alaska; winters along the Pacific coast from Alaska to Baja California.
Estado de conservación
Greater White-fronted Goose
Ring-necked 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 …
Ring-necked Duck
Males black back and breast; gray flanks with white vertical mark near breast. Iridescent dark purple head with subtle chestnut neck ring. Bill blue-gray with white ring near tip. Females …
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.
Ring-necked Duck
El pato de collar es un pato buceador de América del Norte a menudo confundido con otras especies de porrones. El macho tiene la cabeza y el cuello de color negro-verde lustroso, con un collar rojo poco visible en la base del cuello. Tanto el macho como la hembra tienen un distintivo anillo blanco cerca de la punta del pico. Habita en pequeños lagos y estanques boscosos.