Mauritius Shelduck vs Wandering Whistling-duck
Alopochen mauritiana 비교 대상 Dendrocygna arcuata
Side-by-Side Comparison
| 속성 | Mauritius Shelduck | Wandering Whistling-duck |
|---|---|---|
| 학명 | Alopochen mauritiana | 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 | Extinct Mauritius shelduck; likely grazed on grasses and aquatic plants near wetlands; diet inferred from … | Eats grasses, sedges, and aquatic plants in tundra; winter diet of coastal salt marsh grasses … |
| 산란 수 | -- | 6-15 |
| Population Trend | — | — |
Habitat Comparison
Mauritius Shelduck
Historically inhabited wetlands, rivers, and lowland areas of Mauritius. Now extinct; last records from the early colonial period.
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 Shelduck
Extinct (EX); no vocalizations documented. The Mauritius Shelduck was last seen in the 1690s. Any description would be speculative given total absence of written records.
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 Shelduck
Formerly endemic to Mauritius, Indian Ocean. Extinct; known only from 17th-century accounts and subfossil bones found on the island.
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 Shelduck
Wandering Whistling-duck
How to Tell Them Apart
Mauritius Shelduck
Extinct Mascarene shelduck known only from fossil and subfossil remains. Likely brownish plumage similar to Egyptian Goose relatives; presumed sexual dimorphism. Extinct by late 17th century.
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 Shelduck
모리셔스에 고유하게 서식하던 멸종 오리류. 아亚화석 뼈와 초기 정착민의 역사적 기록으로만 알려져 있다.
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.