Wandering Whistling-duck vs Red-breasted Merganser
Dendrocygna arcuata 비교 대상 Mergus serrator
Side-by-Side Comparison
| 속성 | Wandering Whistling-duck | Red-breasted Merganser |
|---|---|---|
| 학명 | Dendrocygna arcuata | Mergus serrator |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 37.2 cm (14.6 in) | 46.7 cm (18.4 in) |
| 체중 | 779.5 g (27.50 oz) | 1058.3333333333333 g (37.33 oz) |
| 식성 | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … | Dives for small fish, crustaceans, and aquatic invertebrates in coastal and freshwater habitats. Pursues fish … |
| 산란 수 | 6-15 | 6-14 |
| Population Trend | — | — |
Habitat Comparison
공유 서식지
Wandering Whistling-duck only
없음
Red-breasted Merganser 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.
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.
Red-breasted Merganser
Male produces a harsh, rasping series of notes; female gives a rough, guttural grunting. The harsh, rattling call is louder than Goosander; pairs and flocks create a rasping coastal cacophony.
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.
Red-breasted Merganser
Circumpolar breeder in boreal and Arctic zones. Winters on coasts and large water bodies south to the Mediterranean and southern Asia.
보전 상태
Wandering Whistling-duck
Red-breasted Merganser
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.
Red-breasted Merganser
Male has dark green shaggy double crest, speckled chestnut breast band, white collar, and grey flanks; red bill. Female has rufous-brown head with ragged crest blending gradually into grey neck …
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.
Red-breasted Merganser
대형 물오리로 체장 52–58cm이며, 수컷은 광택 있는 초록 머리, 빨간 부리, 흰 목 고리, 갈색 가슴을 갖는다. 유라시아와 북아메리카의 해안, 강 하구, 호수에서 번식하고 해안에서 월동한다. 잠수하여 어류를 먹는다. 관심 필요 종이다.