Wandering Whistling-duck vs Pink-headed Duck
Dendrocygna arcuata в сравнении с Rhodonessa caryophyllacea
Side-by-Side Comparison
| Характеристика | Wandering Whistling-duck | Pink-headed Duck |
|---|---|---|
| Научное название | Dendrocygna arcuata | Rhodonessa caryophyllacea |
| Отряд | Anseriformes | Anseriformes |
| Семейство | Anatidae | Anatidae |
| Охранный статус | Least Concern | Critically Endangered |
| Длина | — | — |
| Размах крыльев | 37,2 cm (14.6 in) | 50,2 cm (19.8 in) |
| Масса | 779,5 g (27.50 oz) | 963,8 g (34.00 oz) |
| Питание | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | -- |
| Размер кладки | 6-15 | 5-10 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Wandering Whistling-duck only
Нет
Pink-headed Duck only
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.
Pink-headed Duck
Historically inhabited secluded freshwater pools, lakes, and marshes in tall grass and forest in the Ganges and Brahmaputra plains of India, Nepal, and Myanmar. Now possibly extinct or extremely rare.
Song & Call Comparison
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.
Pink-headed Duck
Critically Endangered; likely gives a soft, resonant quacking note judging from close relatives. The Pink-headed Duck may have produced a distinctive, mellow whistle unlike other pochards.
Geographic Range & Migration
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
Pink-headed Duck
Охранный статус
Wandering Whistling-duck
Pink-headed Duck
How to Tell Them Apart
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.
Pink-headed Duck
Unmistakable; males have strikingly bright pink head and neck contrasting with dark chocolate-brown body and wings. Pink bill. Females have paler pink head. Possibly extinct; last confirmed 1949. Critically endangered …
About These Birds
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.
Pink-headed Duck
Possibly extinct; a distinctive large diving duck formerly found in the Ganges plains of India and Myanmar. Males had a deep pink head and neck contrasting with dark chocolate-brown body. Last confirmed sightings in the 1940s. One of Asia's greatest bird mysteries.