Mauritius Duck vs Blue-billed Teal
Anas theodori 비교 대상 Spatula hottentota
Side-by-Side Comparison
| 속성 | Mauritius Duck | Blue-billed Teal |
|---|---|---|
| 학명 | Anas theodori | Spatula hottentota |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Extinct | Least Concern |
| 체장 | — | — |
| 날개 폭 | — | 29.4 cm (11.6 in) |
| 체중 | — | 269.2 g (9.50 oz) |
| 식성 | Extinct; fed on freshwater invertebrates and aquatic plants; diet inferred from bill morphology and contemporary … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 산란 수 | -- | 5-12 |
| 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.
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
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.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
Geographic Range & Migration
Mauritius Duck
Breeds in Arctic tundra ponds of Canada; winters along the Atlantic and Gulf coasts of the southern United States.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
보전 상태
Mauritius Duck
Blue-billed Teal
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.
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
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.
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.