Masked Duck vs Blue-billed Teal
Nomonyx dominicus 对比 Spatula hottentota
Side-by-Side Comparison
| 属性 | Masked Duck | Blue-billed Teal |
|---|---|---|
| 学名 | Nomonyx dominicus | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 27.6 cm (10.9 in) | 29.4 cm (11.6 in) |
| 体重 | 361.0 g (12.73 oz) | 269.2 g (9.50 oz) |
| 食性 | Dives and dabbles for aquatic seeds, plant matter, and invertebrates in freshwater marshes and ponds … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 产卵数 | 4-6 | 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
Masked Duck
Male emits a soft, dove-like cooing note; female gives a harsh, emphatic quack. The male's gentle, almost melodic cooing is surprising for a stiff-tail; heard in tropical American marshes.
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
Masked Duck
Resident from Mexico and the Caribbean south through Central America to northern South America. Found in lowland freshwater marshes and lagoons.
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
Masked Duck
Blue-billed Teal
How to Tell Them Apart
Masked Duck
Male is rich rufous-chestnut with black mask from forehead to face, boldly spotted black on upperparts; blue bill. Female is streaked buff and brown with two dark facial stripes crossing …
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
Masked Duck
斑背硬尾鸭是分布于南美洲和加勒比海的小型硬尾鸭，与北美草原硬尾鸭和黑头鸭同科。雄鸟头部黑色，背部棕红色有黑斑，尾羽长而硬挺；雌鸟褐色较暗淡。栖息于淡水湖泊和沼泽，善深潜，以水生植物、种子和水生昆虫为食。
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。