Wandering Whistling-duck vs Lake Duck
Dendrocygna arcuata 비교 대상 Oxyura vittata
Side-by-Side Comparison
| 속성 | Wandering Whistling-duck | Lake Duck |
|---|---|---|
| 학명 | Dendrocygna arcuata | Oxyura vittata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 37.2 cm (14.6 in) | 27.6 cm (10.9 in) |
| 체중 | 779.5 g (27.50 oz) | 665.0 g (23.46 oz) |
| 식성 | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for aquatic invertebrates and plant seeds in South American freshwater lakes and marshes. Feeds … |
| 산란 수 | 6-15 | 3-5 |
| Population Trend | — | — |
Habitat Comparison
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
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.
Lake Duck
Male produces a mechanical, drumming staccato call; female gives a soft, nasal quack. Drumming display resembles other Oxyura stiff-tails; heard at dawn on Andean and Patagonian lakes.
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.
Lake Duck
Resident in southern South America from central Chile and central Argentina south to Tierra del Fuego. Found on lowland lakes and lagoons.
보전 상태
Wandering Whistling-duck
Lake 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.
Lake Duck
Male is dark chestnut-brown with black head, pale whitish-grey cheeks, and cobalt-blue bill. Female is brownish-buff with streaked upperparts and a distinctive pale supercilium; undertail coverts whitish.
About These Birds
Wandering Whistling-duck
황갈색-갈색 몸통, 어두운 갈색 등, 엷은 황갈색 아랫면, 밤색 목깃을 가진 중형 홍따오기. 인도네시아에서 호주·태평양 섬까지 열대 습지에 서식. 매우 사회적이고 유목성. 얕은 담수에서 수면 채이기와 잠수로 채이며 먹이를 구한다.
Lake Duck
A stiff-tailed duck (~665 g) of southern South America, family Anatidae, with males displaying ruddy plumage and a bright blue bill. Inhabits freshwater lakes, ponds, and marshes from Brazil to Patagonia. Dives for aquatic plants, seeds, and invertebrates. Least Concern; notable for the proportionally longest penis of any vertebrate relative to body size.