Black-and-rufous Swallow vs African River Martin
Hirundo nigrorufa 对比 Pseudochelidon eurystomina
Side-by-Side Comparison
| 属性 | Black-and-rufous Swallow | African River Martin |
|---|---|---|
| 学名 | Hirundo nigrorufa | Pseudochelidon eurystomina |
| 目 | Passeriformes | Passeriformes |
| 科 | Hirundinidae | Hirundinidae |
| 保护状况 | Least Concern | Data Deficient |
| 体长 | — | — |
| 翼展 | 21.4 cm (8.4 in) | 23.8 cm (9.4 in) |
| 体重 | 14.5 g (0.51 oz) | 26.0 g (0.92 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-and-rufous Swallow
Data Deficient
African River Martin
About These Birds
Black-and-rufous Swallow
黑棕燕分布于非洲中部的安哥拉和赞比亚至坦桑尼亚一带的稀树草原。上体黑色，下体棕红色，飞行敏捷。栖息于开阔草地和林地，以飞行中的昆虫为食，常在开阔地带低空飞行捕食。
African River Martin
The African River Martin is a data-deficient swallow of the Hirundinidae family, with a wingspan of about 24 cm and a weight of 26 g. It is a poorly known species of the Congo River basin, roosting in vast numbers on sandy river islands during the dry season.