African Black Duck vs Ringed Teal
Anas sparsa so với Callonetta leucophrys
Side-by-Side Comparison
| Thuộc Tính | African Black Duck | Ringed Teal |
|---|---|---|
| Tên Khoa Học | Anas sparsa | Callonetta leucophrys |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 49,5 cm (19.5 in) | 33,8 cm (13.3 in) |
| Khối Lượng | 996,8333333333334 g (35.16 oz) | 345,0 g (12.17 oz) |
| Chế Độ Ăn | Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet heavier in … | Eats seeds, plant material, and aquatic invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| Số Trứng | 4-9 | 6-12 |
| 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.
Ringed Teal
Subtropical forests, gallery woodlands, and wooded wetland margins in Bolivia, Brazil, Paraguay, Uruguay, and northeastern Argentina. Nests in tree hollows near water. Requires forested streams and rivers.
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.
Ringed Teal
Male utters a soft, high-pitched squeak; female gives a low, grunting kow note. Courtship involves quiet twittering exchanges between pairs in South American gallery forests.
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.
Ringed Teal
Breeds in the southern Palearctic from the Iberian Peninsula to Central Asia; winters mainly in sub-Saharan Africa.
Tình Trạng Bảo Tồn
African Black Duck
Ringed Teal
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 …
Ringed Teal
Males have gray head with black crown; pink breast with black spots; chestnut back; buff-white flanks with fine barring. White facial blaze. Females brown with pale supercilium and white spots …
About These Birds
African Black Duck
A medium-sized dark brown duck with white spots on the back, a dark bill, and orange legs. Found along fast-flowing rocky rivers and streams in Africa. Territorial and monogamous; pairs defend stretches of river. Related to Pacific Black Duck.
Ringed Teal
A small ornate teal. Males have a pink-chestnut breast, grey flanks, and grey-brown back with dark green speculum; females are brown with distinctive white eye-ring and spotted flanks. Found in subtropical forests of South America. Nests in tree cavities. Perches and roosts in trees.