Canada Goose vs Spotted Whistling-duck
Branta canadensis comparado con Dendrocygna guttata
Side-by-Side Comparison
| Atributo | Canada Goose | Spotted Whistling-duck |
|---|---|---|
| Nombre científico | Branta canadensis | Dendrocygna guttata |
| Orden | Anseriformes | Anseriformes |
| Familia | Anatidae | Anatidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 84,6 cm (33.3 in) | 41,3 cm (16.3 in) |
| Peso | 4906,599999999999 g (173.08 oz) | 677,5 g (23.90 oz) |
| Dieta | Grazes aquatic vegetation and grasses in Arctic tundra; migrates south to winter on estuaries eating … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| Tamaño de la puesta | 1-8 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Canada Goose only
Ninguno
Spotted Whistling-duck only
Ninguno
Canada Goose
Lakes, rivers, ponds, parks, golf courses, agricultural fields, and coastal marshes across North America. Breeds on ground near water. Many populations now resident year-round in temperate urban areas.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Canada Goose
A loud, resonant 'a-honk' or 'hrr-onk'. Flocks produce a constant clamoring honk during migration. Also gives softer cackling contact calls. One of the most recognizable bird sounds.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Canada Goose
Breeds across Canada and Alaska; winters from the contiguous US to northern Mexico. Introduced populations resident in Europe and New Zealand.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
Estado de conservación
Canada Goose
Spotted Whistling-duck
How to Tell Them Apart
Canada Goose
Black head and long neck with bold white chin strap. Back and wings brown-gray; underparts pale tan to white on belly. White undertail coverts. Tail black. Large and familiar; sexes …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Canada Goose
El barnacla canadiense es uno de los gansos más conocidos de América del Norte, reconocible por el cuello y la cabeza negros con las mejillas blancas. Ha sido introducido en Europa, donde forma poblaciones silvestres. Cría en una amplia variedad de hábitats, desde la tundra ártica hasta las zonas suburbanas, siendo uno de los animales que mejor se ha adaptado a los entornos modificados por el hombre.
Spotted Whistling-duck
El pato silbador moteado es un pato silbador de Indonesia, Filipinas y Nueva Guinea, fácilmente reconocible por el plumaje marrón oscuro con manchas blancas en los flancos. Habita en bosques húmedos tropicales con estanques, pantanos y arrozales. Como todos los patos silbadores, tiene un llamado silbante característico y postura erguida. Está clasificado como casi amenazado.