Greater Scaup
| Gender | female |
| Age | adult |
| Plumage | adult plumage |
| Recorded | 2024-02-26 |
| Location | Lachen SZ, CH |
| Copyright | Beat Rüegger |
| Gender | male |
| Age | adult |
| Plumage | breeding plumage |
| Recorded | 2024-02-26 |
| Location | Lachen SZ, CH |
| Copyright | Beat Rüegger |
| Gender | female |
| Age | undetermined |
| Plumage | undetermined |
| Recorded | 2006-02-10 |
| Location | Grangettes, CH |
| Copyright | Dinah Saluz |
| Family | Swans, Geese and Ducks |
| Status CH | regular migrant, regular winter visitor |
| References | en.wikipedia.org |
| vogelwarte.ch |
17 | 60