Details
| Catalogue no.: | UPSZMC 189300 |
| Taxon: | Chroicocephalus ridibundus (Linnaeus, 1766) |
| Label: | Chroicocephalus ridibundus |
| Collector: | Lönnberg, E. |
| Date: | 1923 08 02 |
| Country: | Sweden |
| Province: | Uppsala län |
| Landskap: | Uppland |
| Socken: | Husby-Sjutolft |
| Locality: | Ekolsund |