Brazilian Teal vs Spotted Whistling-duck
Amazonetta brasiliensis 对比 Dendrocygna guttata
Side-by-Side Comparison
| 属性 | Brazilian Teal | Spotted Whistling-duck |
|---|---|---|
| 学名 | Amazonetta brasiliensis | Dendrocygna guttata |
| 目 | Anseriformes | Anseriformes |
| 科 | Anatidae | Anatidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.1 cm (14.2 in) | 41.3 cm (16.3 in) |
| 体重 | 468.0 g (16.51 oz) | 677.5 g (23.90 oz) |
| 食性 | Dabbles for aquatic invertebrates and seeds; diet shifts toward plant material outside breeding season; forages … | Primarily herbivorous; grazes tundra grasses and sedges; winters on coastal marshes and farmland, switching to … |
| 产卵数 | 6-11 | 10-11 |
| Population Trend | — | — |
Habitat Comparison
Brazilian Teal
Freshwater lakes, marshes, rivers, flooded forest, and rice paddies across tropical and subtropical South America from Colombia and Venezuela south to northern Argentina. Tolerates natural and agricultural wetlands.
Spotted Whistling-duck
Freshwater wetlands, rice fields, streams, and forest pools in New Guinea, Sulawesi, the Philippines, and Moluccas. Often found near forested rivers and seasonal swamps at low elevations.
Song & Call Comparison
Brazilian Teal
Male produces a nasal, whistled wheee-oh note; female gives a short, sharp quack. Pairs call back and forth with clear whistled exchanges along Amazonian rivers.
Spotted Whistling-duck
A musical, high whistle similar to other whistling-ducks. Call is softer and less far-carrying than White-faced or Black-bellied species. Given in flight and on water.
Geographic Range & Migration
Brazilian Teal
Breeds in Eurasia and winters in tropical regions from Africa to Southeast Asia. Migratory over broad fronts.
Spotted Whistling-duck
Ranges widely across sub-Saharan Africa in open woodland and savanna. Largely sedentary with local seasonal movements to water.
保护状况
Brazilian Teal
Spotted Whistling-duck
How to Tell Them Apart
Brazilian Teal
Males have red bill and legs; brown body with dark brown back, gray head, buff-white face, and dark crown. Females have pale supercilium and paler face. Both show iridescent green …
Spotted Whistling-duck
Dark brown above; head and neck dark brown. Underparts heavily spotted white on dark brown ground, giving spotted appearance. Flanks with bold white spots. Pink-red bill and legs. Sexes similar.
About These Birds
Brazilian Teal
巴西野鸭（Amazonetta brasiliensis）是一种小型紧凑的鸭，体羽棕色，喙和腿红色，雄鸟具独特的粉蓝色翅膀斑块。属鸭科（Anatidae），分布于南美洲广大地区的湿地，常见且适应性强。
Spotted Whistling-duck
斑树鸭是东南亚和西南太平洋的树鸭，分布于印度尼西亚、菲律宾、巴布亚新几内亚及澳大利亚北部。体羽深褐色，胸部和腹部具白色斑点，嘴灰黑色。栖息于热带雨林的湖泊、河流和湿地，以水生植物、种子和无脊椎动物为食，在树洞中营巢。