Mauritius Duck vs Wandering Whistling-duck
Anas theodori 비교 대상 Dendrocygna arcuata
Side-by-Side Comparison
| 속성 | Mauritius Duck | Wandering Whistling-duck |
|---|---|---|
| 학명 | Anas theodori | Dendrocygna arcuata |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Extinct | Least Concern |
| 체장 | — | — |
| 날개 폭 | — | 37.2 cm (14.6 in) |
| 체중 | — | 779.5 g (27.50 oz) |
| 식성 | -- | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 산란 수 | -- | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Mauritius Duck
Historically restricted to the Mascarene Islands (Mauritius and Réunion) in the Indian Ocean. Now extinct. Presumably inhabited freshwater wetlands and coastal areas before human colonization.
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
Mauritius Duck
Extinct (EX). No recordings exist. As a small island Anas duck, likely produced a quiet quacking call. Closest living relatives among insular Indian Ocean teals give soft, nasal notes.
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
Mauritius Duck
Wandering Whistling-duck
Breeds in Arctic and subarctic regions; winters at sea around the Antarctic pack ice, one of the longest migrations known.
보전 상태
Mauritius Duck
Wandering Whistling-duck
How to Tell Them Apart
Mauritius Duck
Extinct Mascarene duck known only from subfossil bones. Plumage unrecorded; presumably brown dabbling duck plumage typical of Anas. Likely flightless or near-flightless; extirpated after European settlement of Mauritius.
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
Mauritius Duck
모리셔스 오리는 마스카렌 제도의 모리셔스와 레위니옹에 서식했던 날지 못하는 오리였으나, 17-18세기에 인간 활동으로 인해 멸종되었습니다. 하위아화석 기록에서만 알려진 종입니다.
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.