African Black Duck vs Australasian Shoveler
Anas sparsa 比較対象 Spatula rhynchotis
Side-by-Side Comparison
| 属性 | African Black Duck | Australasian Shoveler |
|---|---|---|
| 学名 | Anas sparsa | Spatula rhynchotis |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 49.5 cm (19.5 in) | 44.8 cm (17.6 in) |
| 体重 | 996.8333333333334 g (35.16 oz) | 678.0 g (23.92 oz) |
| 食性 | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Feeds on aquatic invertebrates, seeds, and plant material; dabbles in shallow freshwater; diet seasonally variable. |
| 一腹卵数 | 4-9 | 5-13 |
| 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.
Australasian Shoveler
Freshwater and brackish wetlands, lakes, and marshes across southern and eastern Australia and New Zealand. Nomadic in Australia; follows seasonal flooding. Often on permanent lakes and coastal lagoons.
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.
Australasian Shoveler
Male emits a soft, muffled tok; female gives a series of rapid, descending quacks. The female's characteristic quacking laugh is similar to the Northern Shoveler but slightly lower pitched.
Geographic Range & Migration
African Black Duck
Resident across South and Southeast Asia, from India to southern China and the Philippines. Non-migratory in most of its range.
Australasian Shoveler
Breeds in central Asia; winters mainly in South and Southeast Asia, with some birds reaching eastern Africa.
保全状況
African Black Duck
Australasian Shoveler
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 …
Australasian Shoveler
Males have slate-blue head with white crescent before eye; rich rufous-brown below with white breast spot. Blue forewing and green speculum. Females mottled brown. Long spatulate bill bluish-gray. Dimorphic.
About These Birds
African Black Duck
アフリカンブラックダックはサハラ以南のアフリカの急流河川に生息する特殊なカモです。暗褐色の羽毛と白い斑点が特徴で、水流の速い清澄な渓流を好みます。繁殖期には縄張り意識が強く、ペアで生活します。急流の水生昆虫や甲殻類を主食とします。
Australasian Shoveler
A medium-sized shoveler with the distinctive large bill. Males are brownish with blue-grey wing patches and white facial crescent; females are mottled brown. Found in Australia and New Zealand. Nomadic within Australia; follows seasonal inland flooding.