Alpine Chough
| Recorded | 2011-04-11 |
| Location | Gemmi, VS, CH |
| Copyright | Beat Rüegger |
| Recorded | 2011-04-02 |
| Location | Gemmi, VS, CH |
| Copyright | Marcel Burkhardt |
| Recorded | 2017-07-22 |
| Location | Niederhorn BE, CH |
| Copyright | Beat Rüegger |
| Family | Crows |
| References | en.wikipedia.org |
18 | 18