Canada Goose vs Spotted Whistling-duck
Branta canadensis ile kıyaslandığında Dendrocygna guttata
Side-by-Side Comparison
| Özellik | Canada Goose | Spotted Whistling-duck |
|---|---|---|
| Bilimsel Ad | Branta canadensis | Dendrocygna guttata |
| Takım | Anseriformes | Anseriformes |
| Familya | Anatidae | Anatidae |
| Koruma Durumu | Least Concern | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 84,6 cm (33.3 in) | 41,3 cm (16.3 in) |
| Ağırlık | 4906,599999999999 g (173.08 oz) | 677,5 g (23.90 oz) |
| Beslenme | 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 … |
| Kuluçka Büyüklüğü | 1-8 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Canada Goose only
Hiçbiri
Spotted Whistling-duck only
Hiçbiri
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.
Koruma Durumu
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
A large familiar goose with a black head and neck, white chinstrap patch, brown body, and white undertail. The most widespread goose in North America. Populations have dramatically expanded in urban parks due to adaptability. Migratory in the northern range; increasingly resident in temperate regions.
Spotted Whistling-duck
A small dark brown whistling-duck with bold white spots on its flanks, orange-red bill and legs, and a pale face. Found in tropical wetlands of New Guinea, the Philippines, and Indonesia. Often found near freshwater streams and flooded grassland. Less gregarious than other whistling-ducks.