Red-billed Teal vs African Black Duck
Anas erythrorhyncha 비교 대상 Anas sparsa
Side-by-Side Comparison
| 속성 | Red-billed Teal | African Black Duck |
|---|---|---|
| 학명 | Anas erythrorhyncha | Anas sparsa |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 43.0 cm (16.9 in) | 49.5 cm (19.5 in) |
| 체중 | 648.0 g (22.86 oz) | 996.8333333333334 g (35.16 oz) |
| 식성 | Dives for molluscs, crustaceans, and small fish in coastal and freshwater habitats; diet shifts with … | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … |
| 산란 수 | 5-13 | 4-9 |
| Population Trend | — | — |
Habitat Comparison
Red-billed Teal
Freshwater lakes, marshes, pans, and flooded fields across sub-Saharan Africa from Ethiopia and Sudan south to the Cape. Nomadic; follows seasonal flooding. Very tolerant of saline conditions.
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
Red-billed Teal
Female produces a loud, nasal quacking series; male gives a soft, nasal grunt. Both sexes call with emphatic, honking quacks that carry across African open wetlands and dams.
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
Red-billed Teal
Breeds in northern Eurasia and Arctic Canada; winters on open ocean in the North Atlantic and North Pacific.
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
Red-billed Teal
African Black Duck
How to Tell Them Apart
Red-billed Teal
Diagnostic bright pink-red bill with dark ridge contrasting with dark brown cap. Body brown, finely scalloped. White sides of face. Pale buff-white speculum with dark border. Sexes similar. Sub-Saharan Africa.
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
Red-billed Teal
붉은부리 오리는 사하라 이남 아프리카 전역에 분포하며, 얕은 호수와 습지를 선호합니다. 이름에서 알 수 있듯이 밝은 붉은색 부리가 특징이며, 갈색 반점이 있는 몸통과 대비를 이룹니다.
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.