Andean Duck vs Blue-billed Teal
Oxyura ferruginea 对比 Spatula hottentota
Side-by-Side Comparison
| 属性 | Andean Duck | Blue-billed Teal |
|---|---|---|
| 学名 | Oxyura ferruginea | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 31.4 cm (12.4 in) | 29.4 cm (11.6 in) |
| 体重 | 800.75 g (28.25 oz) | 269.2 g (9.50 oz) |
| 食性 | 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 … |
| 产卵数 | 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.
保护状况
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
安第斯硬尾鸭（有时作为北美草原硬尾鸭亚种处理）是南美洲安第斯高原特有的小型硬尾鸭。雄鸟头部黑色，嘴部蓝色，体羽棕红色；雌鸟褐色。分布于哥伦比亚至阿根廷的高原湖泊，善深潜，以水生植物和无脊椎动物为食，极少飞行。
Blue-billed Teal
霍屯都鸭是非洲的一种小型水面鸭，以南非土著霍屯都人命名，主要分布于撒哈拉以南非洲东部和南部。体型小，雄鸟头颈部蓝灰色，体羽棕褐色有细纹；雌鸟褐色。栖息于淡水湖泊、沼泽和湿地，以水生植物和无脊椎动物为食。