 |
| |||
| bank swallow Riparia riparia; Sand Martin (Riparia riparia) | |||
| sand-martin; bank swallow | |||
| sand martin Riparia riparia | |||
| sand martin (Riparia riparia) | |||
| common sand martin (Riparia riparia); European sand martin (Riparia riparia); bank swallow (Riparia riparia); sand martin (Riparia riparia); sand-martin (Riparia riparia) | |||
| Uferschwalbe: 12 phrases in 3 subjects |
| General | 2 |
| Natural resourses and wildlife conservation | 1 |
| Ornithology | 9 |