Ring-billed Gull
| Gender | undetermined |
| Age | adult |
| Plumage | breeding plumage |
| Recorded | 2008-05-01 |
| Location | Texas, US |
| Copyright | Ruedi Aeschlimann |
| Gender | undetermined |
| Age | adult |
| Plumage | non-breeding plumage |
| Recorded | 2018-02-22 |
| Location | Terceira, Azoren, PT |
| Copyright | Adrian Jordi |
| Gender | undetermined |
| Age | adult |
| Plumage | non-breeding plumage |
| Recorded | 2018-02-22 |
| Location | Terceira, Azoren, PT |
| Copyright | Adrian Jordi |
| Family | Gulls |
| Status CH | |
| References | en.wikipedia.org |
| vogelwarte.ch |
16 | 29