Andean Duck vs Blue-billed Teal
Oxyura ferruginea so với Spatula hottentota
Side-by-Side Comparison
| Thuộc Tính | Andean Duck | Blue-billed Teal |
|---|---|---|
| Tên Khoa Học | Oxyura ferruginea | Spatula hottentota |
| Bộ | Anseriformes | Anseriformes |
| Họ | Anatidae | Anatidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 31,4 cm (12.4 in) | 29,4 cm (11.6 in) |
| Khối Lượng | 800,75 g (28.25 oz) | 269,2 g (9.50 oz) |
| Chế Độ Ăn | Dives for aquatic invertebrates and plant seeds in Andean lakes and marshes. Diet similar to … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| Số Trứng | 6-10 | 5-12 |
| Population Trend | — | — |
Habitat Comparison
Blue-billed Teal
Freshwater lakes, marshes, pans, and flooded grasslands across sub-Saharan Africa from Senegal and Sudan south to the Cape. Nomadic; follows seasonal rains. Common but easily overlooked among reed beds.
Song & Call Comparison
Andean Duck
Male gives a rapid, staccato drumming display call; female produces a nasal, quacking rattle. The male's mechanical drumming is similar to Ruddy Duck; echoes across Andean high-altitude lakes.
Blue-billed Teal
Male utters a soft, teal-like peep; female gives a muted quack. Pairs call quietly in dense papyrus; soft contact calls help birds maintain proximity in thick African marsh vegetation.
Geographic Range & Migration
Andean Duck
Resident in the Andes of Colombia, Ecuador, Peru, Bolivia, and northwestern Argentina. Found on high-altitude lakes above 3,000 m.
Blue-billed Teal
Breeds in Arctic and subarctic Eurasia; winters at sea in the North Atlantic and from western Europe to eastern Africa.
Tình Trạng Bảo Tồn
Andean Duck
Blue-billed Teal
How to Tell Them Apart
Andean Duck
Male is dark chestnut-rufous overall with black head, white cheeks tinged grey, and deep blue bill. Female is dark brownish with pale cheeks divided by a dark bar; similar to …
Blue-billed Teal
Small; males have pale blue-gray bill contrasting with brown-gray body. Head finely spotted; underparts barred brown and white. Males show powder-blue forewing in flight. Females browner. African marsh species.
About These Birds
Andean Duck
A stocky stiff-tailed duck (~800 g) of family Anatidae inhabiting high-altitude Andean lakes and wetlands from Colombia to Argentina. Males are rich chestnut with a blue bill during the breeding season. Dives for aquatic plants and invertebrates in cold Andean waters. Least Concern; formerly considered conspecific with Ruddy Duck but now recognized as a distinct species.
Blue-billed Teal
A small dark teal with blue-grey bill and legs, brown-streaked plumage, and fine pale spotting on the flanks. The most widespread teal in sub-Saharan Africa. Found on freshwater lakes and marshes. Highly nomadic; follows seasonal rainfall. Swims low in the water like a pochard.