African Black Duck vs Taiga Bean Goose
Anas sparsa 비교 대상 Anser fabalis
Side-by-Side Comparison
| 속성 | African Black Duck | Taiga Bean Goose |
|---|---|---|
| 학명 | Anas sparsa | Anser fabalis |
| 목 | Anseriformes | Anseriformes |
| 과 | Anatidae | Anatidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 49.5 cm (19.5 in) | 89.7 cm (35.3 in) |
| 체중 | 996.8333333333334 g (35.16 oz) | 3115.0 g (109.88 oz) |
| 식성 | -- | -- |
| 산란 수 | 4-9 | 3-8 |
| Population Trend | — | — |
Habitat Comparison
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.
Taiga Bean Goose
Breeds in taiga forest, boggy clearings, and river valleys across Scandinavia and northern Russia. Winters on agricultural fields, pastures, and river valleys in western and central Europe, particularly Belgium and the Netherlands.
Song & Call Comparison
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.
Taiga Bean Goose
A low, nasal 'ung-unk' or 'ow' call — less nasal than Grey-lag. Flocks give continuous calling. The call distinction from Tundra Bean Goose is subtle but detectable.
보전 상태
African Black Duck
Taiga Bean Goose
How to Tell Them Apart
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 …
Taiga Bean Goose
Dark brown head and neck; back dark brown with pale feather edges giving scalloped appearance. Underparts pale gray-brown. Bill orange-yellow with black base and tip. Orange legs. Darker than Pink-footed …
About These Birds
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.
Taiga Bean Goose
콩 기러기는 유라시아의 북부 타이가와 툰드라에서 번식하고 남쪽 유럽과 아시아에서 월동합니다. 두 가지 이하위종이 있으며, 오렌지색과 검은색 부리 무늬와 주황색 다리가 특징입니다.