Barn Swallow vs Angola Swallow
Hirundo rustica 对比 Hirundo angolensis
Side-by-Side Comparison
| 属性 | Barn Swallow | Angola Swallow |
|---|---|---|
| 学名 | Hirundo rustica | Hirundo angolensis |
| 目 | Passeriformes | Passeriformes |
| 科 | Hirundinidae | Hirundinidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 19.0 cm (7.5 in) | — |
| 翼展 | 33.0 cm (13.0 in) | 23.3 cm (9.2 in) |
| 体重 | 19.0 g (0.67 oz) | 17.35 g (0.61 oz) |
| 食性 | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | -- |
| 产卵数 | 2-7 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Barn Swallow
Open farmland, meadows, and areas near water. Nests almost exclusively in human-made structures such as barns, bridges, and eaves.
Song & Call Comparison
Barn Swallow
A rapid, twittering song: a long stream of 'vit-vit-vit' and rolling chirps. Also gives a sharp 'vit' flight call. Song can last many minutes without pause. Musical and liquid.
Angola Swallow
Geographic Range & Migration
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
Angola Swallow
保护状况
Barn Swallow
Angola Swallow
How to Tell Them Apart
Barn Swallow
Metallic blue-black upperparts, rufous forehead and throat, and pale buff to rufous underparts. Deeply forked tail with elongated outer streamers.
Short, wide, flat black bill adapted for catching insects in flight
Angola Swallow
About These Birds
Barn Swallow
The barn swallow is the most widespread swallow species in the world and has one of the longest migrations of any passerine. Its arrival signals spring across the Northern Hemisphere, inspiring cultural references from ancient Greece to modern poetry. Barn swallows have become almost entirely dependent on human structures for nesting.
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。