Greylag Goose vs Wandering Whistling-duck
Anser anser в сравнении с Dendrocygna arcuata
Side-by-Side Comparison
| Характеристика | Greylag Goose | Wandering Whistling-duck |
|---|---|---|
| Научное название | Anser anser | Dendrocygna arcuata |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 87,1 cm (34.3 in) | 37,2 cm (14.6 in) |
| Масса | 3297,5 g (116.32 oz) | 779,5 g (27.50 oz) |
| Питание | -- | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| Размер кладки | 3-12 | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Greylag Goose only
Wandering Whistling-duck only
Нет
Greylag Goose
Breeds on moorland, bogs, freshwater wetlands, and lake margins across Eurasia from Iceland to central Asia. Winters on estuaries, agricultural fields, and wetlands. Feral populations year-round in parks.
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
Greylag Goose
A deep, loud 'aahng' honking. The ancestral goose of domesticated geese; its call is the template for the classic 'goose honk'. Flocks are highly vocal in flight.
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
Greylag Goose
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Охранный статус
Greylag Goose
Wandering Whistling-duck
How to Tell Them Apart
Greylag Goose
Large and heavy; uniformly gray-brown with pale feather fringes on back. Head and neck grayish-brown. Orange-pink bill; pink legs. Pale gray forewing conspicuous in flight. Ancestor of domestic geese.
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
Greylag Goose
The ancestor of most domestic geese, with grey-brown plumage, an orange bill, and pale grey forewing visible in flight. Large and boisterous; one of Europe's most familiar geese. Wild birds breed across Eurasia; re-introduced and feral populations now resident in many areas including city parks.
Wandering Whistling-duck
A medium-sized whistling-duck with rufous-brown body, dark brown back, pale buff underparts, and a chestnut collar. Found in tropical wetlands from Indonesia to Australia and Pacific islands. Highly social and nomadic. Forages by dabbling and diving in shallow freshwater.