African River Martin vs Collared Sand Martin
Pseudochelidon eurystomina 对比 Riparia riparia
Side-by-Side Comparison
| 属性 | African River Martin | Collared Sand Martin |
|---|---|---|
| 学名 | Pseudochelidon eurystomina | Riparia riparia |
| 目 | Passeriformes | Passeriformes |
| 科 | Hirundinidae | Hirundinidae |
| 保护状况 | Data Deficient | Least Concern |
| 体长 | — | — |
| 翼展 | 23.8 cm (9.4 in) | 20.4 cm (8.0 in) |
| 体重 | 26.0 g (0.92 oz) | 13.700000000000001 g (0.48 oz) |
| 食性 | -- | -- |
| 产卵数 | 3 | 2-7 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Data Deficient
African River Martin
Least Concern
Collared Sand Martin
About These Birds
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.
Collared Sand Martin
崖沙燕（约14克）是欧洲最小的燕科鸟类，在沙质河岸和砾石坑壁上筑群居洞巢。广布于北半球，越冬于非洲和亚洲南部。以空中昆虫为食。无危；分布广泛，但在欧洲因沙质河岸减少和越冬地干旱而数量有所下降。