Blue-billed Duck vs Blue-billed Teal
Oxyura australis 对比 Spatula hottentota
Side-by-Side Comparison
| 属性 | Blue-billed Duck | Blue-billed Teal |
|---|---|---|
| 学名 | Oxyura australis | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 30.8 cm (12.1 in) | 29.4 cm (11.6 in) |
| 体重 | 837.75 g (29.55 oz) | 269.2 g (9.50 oz) |
| 食性 | Dives for aquatic invertebrates, seeds, and plant material in Australian freshwater lakes and swamps. Highly … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 产卵数 | 5-6 | 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
Blue-billed Duck
Male produces a mechanical, splashing display call with loud bill-drumming; female gives a harsh quack. The male's bizarre bubbling-cum-drumming display is spectacular on Australian 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
Blue-billed Duck
Resident in southwestern and southeastern Australia. Found on freshwater swamps and lakes, avoiding arid and tropical regions.
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
Blue-billed Duck
Blue-billed Teal
How to Tell Them Apart
Blue-billed Duck
Breeding male is deep rich chestnut with black head and broad bright blue bill; tail often held erect. Female is dark brown with finely barred buff pattern on body and …
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
Blue-billed Duck
澳洲硬尾鸭是澳大利亚特有的小型潜鸭，以其刚硬的尾羽著称，常竖起尾羽游泳。雄鸟繁殖羽头部黑色，体羽棕红色，嘴部亮蓝色；雌鸟褐色，嘴黑色。栖息于澳大利亚南部的湖泊和沼泽，以水生植物和无脊椎动物为食。
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。