Plumed Whistling-duck vs Blue-billed Teal
Dendrocygna eytoni 对比 Spatula hottentota
Side-by-Side Comparison
| 属性 | Plumed Whistling-duck | Blue-billed Teal |
|---|---|---|
| 学名 | Dendrocygna eytoni | Spatula hottentota |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 46.4 cm (18.3 in) | 29.4 cm (11.6 in) |
| 体重 | 877.5 g (30.95 oz) | 269.2 g (9.50 oz) |
| 食性 | Grazes short tundra grasses; also takes aquatic vegetation; large Arctic goose wintering on coastal marshes … | Feeds on seeds, aquatic plants, and invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … |
| 产卵数 | 8-14 | 5-12 |
| Population Trend | — | — |
Habitat Comparison
Plumed Whistling-duck
Grassy tropical wetland margins, flooded plains, and well-watered pastures in northern and eastern Australia. Grazes on land near water at night; rests on open ground or in trees during the day.
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
Plumed Whistling-duck
A high, reedy whistling call similar to other Dendrocygna. Plumed Whistling-duck gives 'grassy' grassland calls. Less musical than White-faced; contact notes are short whistles.
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
Plumed Whistling-duck
Breeds in the Holarctic tundra and boreal zones; winters on temperate coasts and large inland lakes globally.
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
Plumed Whistling-duck
Blue-billed Teal
How to Tell Them Apart
Plumed Whistling-duck
Pale brown head and neck; chestnut-brown back. Distinctive long, pale golden plumes extend from flanks. Breast pale pink with dark spots. Belly pale. Long pink legs. Upright posture. Sexes similar.
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
Plumed Whistling-duck
草地树鸭是澳大利亚特有的树鸭，以雄鸟两翼上发达的浅色羽冠著称。体型较大，体羽浅褐色，嘴部粉红色，腿部粉色。广泛分布于澳大利亚北部和东部的草地、稻田和湿地，主要在陆地上觅食草叶和种子，常结大群活动，在树木和灌木丛中栖息。
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。