Snow Goose vs Wandering Whistling-duck
Anser caerulescens comparado con Dendrocygna arcuata
Side-by-Side Comparison
| Atributo | Snow Goose | Wandering Whistling-duck |
|---|---|---|
| Nombre científico | Anser caerulescens | Dendrocygna arcuata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 82,4 cm (32.4 in) | 37,2 cm (14.6 in) |
| Peso | 2561,0 g (90.34 oz) | 779,5 g (27.50 oz) |
| Dieta | Grazes submerged aquatic vegetation and eelgrass in estuaries; also takes grasses and sedges on coastal … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| Tamaño de la puesta | 2-6 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Snow Goose only
Wandering Whistling-duck only
Ninguno
Snow Goose
Breeds on coastal and inland Arctic tundra in Canada, Alaska, and Greenland. Winters on agricultural fields, marshes, and coastal wetlands across the United States and northern Mexico. Forms enormous 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
Snow Goose
A loud, nasal barking 'luk-luk' or 'kow-kow'. Large flocks create enormous noise during Arctic nesting and winter staging. Considered a noisy, conspicuous goose.
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
Snow Goose
Breeds in eastern North America's boreal forest; winters on the Atlantic coast from New England to South Carolina.
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
Snow Goose
Wandering Whistling-duck
How to Tell Them Apart
Snow Goose
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
Snow Goose
El ganso de las nieves es un ganso ártico que se presenta en dos morfologías de color: una forma blanca con las puntas de las alas negras y una forma azul-grisácea. Cría en la tundra ártica y migra en enormes bandadas al sur de Estados Unidos y México para pasar el invierno. Sus poblaciones han aumentado explosivamente en las últimas décadas, causando problemas de sobrepastoreo en la tundra.
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.