Rynchops
Gygis
Anous
Onychoprion
Sternula
Phaetusa
Gelochelidon
Hydroprogne
Larosterna
Chlidonias
Sterna
Thalasseus
Creagrus
Hydrocoloeus
Rhodostethia
Rissa
Pagophila
Xema
Chroicocephalus
Leucophaeus
Ichthyaetus
Larus