Green-winged Teal vs African Black Duck
Anas carolinensis 비교 대상 Anas sparsa
Side-by-Side Comparison
| 속성 | Green-winged Teal | African Black Duck |
|---|---|---|
| 학명 | Anas carolinensis | Anas sparsa |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 35.0 cm (13.8 in) | 49.5 cm (19.5 in) |
| 체중 | 330.5 g (11.66 oz) | 996.8333333333334 g (35.16 oz) |
| 식성 | Eats aquatic invertebrates, molluscs, and seeds; dives in shallow water; diet shifts between invertebrates and … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … |
| 산란 수 | -- | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Green-winged Teal
Breeds on boreal and subarctic wetlands across North America. Winters on freshwater marshes, coastal estuaries, rice paddies, and shallow wetlands from the southern United States to Central America and the Caribbean.
African Black Duck
Fast-flowing rocky rivers and streams, mountain gorges, and waterfalls from sea level to 4,000 m across sub-Saharan Africa from Ethiopia and Kenya south to the Cape. Requires clear turbulent water with boulders.
Song & Call Comparison
Green-winged Teal
Male produces a high, clear krick call; female gives a subdued quack. Closely related to Common Teal; male's ringing call punctuates North American freshwater marshes in spring.
African Black Duck
Produces a harsh, resonant quacking call; alarm is a loud, emphatic quack repeated rapidly. Both sexes call with strong quacking; pairs duet with synchronized calls along African rivers.
Geographic Range & Migration
Green-winged Teal
Breeds in Arctic regions; winters at sea across the North Pacific, from Alaska to Japan and northern California.
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
보전 상태
Green-winged Teal
African Black Duck
How to Tell Them Apart
Green-winged Teal
Males have chestnut head with iridescent green eye patch; gray body; vertical white shoulder stripe (vs. horizontal in Common Teal). Cream and black undertail. Females mottled brown. Smallest North American …
African Black Duck
Dark blackish-brown plumage with bold white spots on back and scapulars. Iridescent blue-green speculum with white borders. Head dark with pale spots. Bill and legs dark gray. Sexes similar. Fast-flowing …
About These Birds
Green-winged Teal
작은 표면 먹이 오리로, 일반청둥오리의 북미 상대종이다. 수컷은 풍부한 밤색 머리에 광택 있는 초록 눈 줄무늬, 수평 흰 어깨 줄무늬가 있다. 북미 전역에서 번식하고 남쪽으로 이동한다.
African Black Duck
아프리카 검정 오리는 사하라 이남 아프리카의 산간 하천과 개울에 서식하는 중간 크기의 오리입니다. 어두운 갈색 깃털과 흰색 반점이 특징이며, 빠르게 흐르는 물에 적응되어 있습니다.