Lesser White-fronted Goose vs Wandering Whistling-duck
Anser erythropus comparado con Dendrocygna arcuata
Side-by-Side Comparison
| Atributo | Lesser White-fronted Goose | Wandering Whistling-duck |
|---|---|---|
| Nombre científico | Anser erythropus | Dendrocygna arcuata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Vulnerable | Least Concern |
| Longitud | — | — |
| Envergadura | 73,8 cm (29.1 in) | 37,2 cm (14.6 in) |
| Peso | 1912,5 g (67.46 oz) | 779,5 g (27.50 oz) |
| Dieta | -- | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| Tamaño de la puesta | 2-8 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Lesser White-fronted Goose only
Wandering Whistling-duck only
Ninguno
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.
Wandering Whistling-duck
Tropical freshwater marshes, flooded grasslands, swamps, and lake margins from the Philippines and Indonesia through Papua New Guinea to northern and eastern Australia. Nomadic following wet season flooding.
Song & Call Comparison
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.
Wandering Whistling-duck
A soft whistle 'whi-whi-whi' in flight. Less vocal than other whistling-ducks; flocks tend to be quieter. Given at dawn and dusk during flight to roosting or feeding areas.
Geographic Range & Migration
Lesser White-fronted Goose
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Estado de conservación
Lesser White-fronted Goose
Wandering Whistling-duck
How to Tell Them Apart
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.
Wandering Whistling-duck
Rich chestnut-brown head and neck; dark brown back. Flanks rufous with pale buff streaks and dark spots. Belly blackish. Long, dark pinkish legs. Upright posture typical of whistling-ducks. Sexes similar.
About These Birds
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.
Wandering Whistling-duck
El pato silbador vagabundo es un pato silbador de distribución amplia en las regiones tropicales de Asia y el Pacífico, desde Borneo e Indonesia hasta Nueva Guinea y Australia. Tiene plumaje castaño con blanco y negro en los flancos. Habita en humedales tropicales, pantanos, lagunas, estanques y arrozales. Es una especie nómada que sigue las lluvias en busca de humedales.