White-winged Tern
| Gender | undetermined |
| Age | adult |
| Plumage | breeding plumage |
| Recorded | 2012-04-20 |
| Location | Donaudelta, RO |
| Copyright | Beat Rüegger |
| Family | Terns |
| Status CH | rare migrant |
| References | en.wikipedia.org |
| vogelwarte.ch |
20 | 27