Common Merganser
| Recorded | 2011-01-23 |
| Location | Aarburg, AG, CH |
| Copyright | Beat Rüegger |
| Recorded | 2025-09-24 |
| Location | Neeracher Ried ZH, CH |
| Copyright | Beat Rüegger |
| Recorded | 2011-12-18 |
| Location | Aarburg, AG, CH |
| Copyright | Beat Rüegger |
| Family | Swans, Geese and Ducks |
| References | en.wikipedia.org |
439 | 615