Angola Swallow vs Black-collared Swallow
Hirundo angolensis 对比 Pygochelidon melanoleuca
Side-by-Side Comparison
| 属性 | Angola Swallow | Black-collared Swallow |
|---|---|---|
| 学名 | Hirundo angolensis | Pygochelidon melanoleuca |
| 目 | Passeriformes | Passeriformes |
| 科 | Hirundinidae | Hirundinidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 23.3 cm (9.2 in) | 18.3 cm (7.2 in) |
| 体重 | 17.35 g (0.61 oz) | 11.025 g (0.39 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-4 | 3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Angola Swallow
Least Concern
Black-collared Swallow
About These Birds
Angola Swallow
安哥拉燕分布于非洲中部的热带草原和农田，从刚果至安哥拉。体羽蓝黑色，腹部白色，翅下面白色。栖息于开阔的稀树草原和农业地带，以昆虫为食，常在低空飞翔捕食。与普通燕在外形上相似。
Black-collared Swallow
The Black-collared Swallow is a distinctive South American swallow with glossy blue-black upperparts, white underparts, and a broad black collar across the upper breast. It inhabits rocky rivers and fast-flowing streams in lowland tropical forests and adjacent areas from Colombia and Venezuela south through Amazonian Brazil, often nesting in crevices of riverside rocks. It feeds on flying insects caught over water.