Common Loon
| Gender | undetermined |
| Age | adult |
| Plumage | breeding plumage |
| Recorded | 2006-05-01 |
| Location | Kesswil, CH |
| Copyright | Ernst Weiss |
| Gender | undetermined |
| Age | 1st calendar year |
| Plumage | 1st winter |
| Recorded | 2007-12-16 |
| Location | Birrwil, CH |
| Copyright | Beat Rüegger |
| Alternate names | Great Northern Loon |
| Family | Divers |
| Status CH | rare migrant, local winter visitor |
| References | en.wikipedia.org |
| vogelwarte.ch |
3 | 9