| Genus | Species |
|---|---|
| Anous | 6 |
| Chlidonias | 4 |
| Chroicocephalus | 12 |
| Creagrus | 1 |
| Gelochelidon | 1 |
| Gygis | 1 |
| Hydrocoloeus | 1 |
| Hydroprogne | 1 |
| Ichthyaetus | 6 |
| Larosterna | 1 |
| Larus | 28 |
| Leucophaeus | 5 |
| Onychoprion | 4 |
| Pagophila | 1 |
| Phaetusa | 1 |
| Pinguinus | 1 |
| Procelsterna | 0 |
| Rhodostethia | 1 |
| Rissa | 2 |
| Rynchops | 1 |
| Saundersilarus | 0 |
| Sterna | 10 |
| Sternula | 7 |
| Thalasseus | 8 |
| Xema | 1 |