Study title |
Number of records |
| Seabird 2000 (EurOBIS) | 11663 records |
| MEDITS Seabird surveys 1999 - 2000 - 2002 | 1072 records |
| Baltic seabirds transect surveys | 6318 records |
| Seabirds of the Southern and South Indian Ocean (Australian Antarctic Data Centre) | 122218 records |
| Monitoring site 1000 Shorebird Survey | 38674 records |
| Data collected aboard cruises off the coast of the Western Antarctic Penninsula | 3050 records |
| CWS-EC Eastern Canada Seabirds at Sea (ECSAS) | 132261 records |
| Bulgaria Wintering Waterbirds, Black Sea Coast | 1162 records |
| Population trends of Laridae and Sternidae breeding in the Comacchio Laggon (NE Italy) between 1977 | 196 records |
| Cens Internacional d’ocells aquàtics i marins hivernants a Catalunya de gener de 2021 | 1922 records |
| Nest population size and potential production of geese and spectacled eiders on the Yukon-Kuskokwim | 364 records |
