Greater White-fronted Goose vs Lesser White-fronted Goose
Anser albifrons comparado con Anser erythropus
Side-by-Side Comparison
| Atributo | Greater White-fronted Goose | Lesser White-fronted Goose |
|---|---|---|
| Nombre científico | Anser albifrons | Anser erythropus |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 81,6 cm (32.1 in) | 73,8 cm (29.1 in) |
| Peso | 2471,0 g (87.16 oz) | 1912,5 g (67.46 oz) |
| Dieta | Dabbles for aquatic invertebrates, seeds, and plant material; diet shifts heavily toward invertebrates in breeding … | -- |
| Tamaño de la puesta | 3-9 | 2-8 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Greater White-fronted Goose only
Lesser White-fronted Goose 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.
Lesser White-fronted Goose
Breeds on low-arctic and subarctic willow scrub and tundra across northern Eurasia. Winters on agricultural steppes and wetlands in Azerbaijan, Iran, Greece, and eastern Asia. Mixes with White-fronted Goose flocks.
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.
Lesser White-fronted Goose
A high-pitched, rapid 'yelp' — noticeably faster and higher than Greater White-fronted. VU status; its smaller size is reflected in higher-frequency calls.
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.
Lesser White-fronted Goose
Estado de conservación
Greater White-fronted Goose
Lesser White-fronted Goose
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 …
Lesser White-fronted Goose
Similar to but smaller than Greater White-fronted Goose; more extensive white forehead reaching above eyes. Distinctive yellow eye-ring. Dark brown-gray body with black belly bars. Pink bill; orange legs.
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.
Lesser White-fronted Goose
El ánsar chico o ganso careto chico es el más pequeño de los gansos árticos y está en peligro de extinción. Tiene el mismo patrón que el ánsar careto pero más pequeño, con un anillo ocular amarillo llamativo. Cría en la tundra del norte de Eurasia y migra al sur para pasar el invierno. Su población ha declinado drásticamente en las últimas décadas por la caza excesiva y la pérdida de hábitat.