Mute Swan
| Gender | male and female |
| Recorded | 2006-02-17 |
| Location | Rothrist, CH |
| Copyright | Beat Rüegger |
| Gender | undetermined |
| Recorded | 2007-01-10 |
| Location | Klingnauer Stau, CH |
| Copyright | Beat Rüegger |
| Family | Swans, Geese and Ducks |
| References | en.wikipedia.org |
364 | 559