Marbled Duck
| Gender | undetermined |
| Age | undetermined |
| Plumage | undetermined |
| Recorded | 2009-11-05 |
| Location | Luzern, CH |
| Copyright | Ruedi Aeschlimann |
| Family | Swans, Geese and Ducks |
| Status CH | natural state doubtful |
| References | en.wikipedia.org |
| vogelwarte.ch |
22 | 47