Anous (noddys) (4)
Chlidonias (black terns) (4)
Chroicocephalus (14)
Creagrus (Swallow-tailed gull) (1)
Feducciavis (1)
Gaviota (1)
Gelochelidon (2)
Gygis (white terns) (1)
Hydrocoloeus (1)
Hydroprogne (1)
Ichthyaetus (6)
Larosterna (Inca tern) (1)
Larus (gulls) (48)
Leucophaeus (5)
Onychoprion (brown-backed terns) (4)
Pagophila (Gull) (2)
Phaetusa (Large-billed tern) (1)
Procelsterna (blue-gray noddys) (2)
Pseudosterna (2)
Rhodostethia (Ross' gull) (1)
Rissa (Kittiwake) (5)
Rynchops (skimmers) (4)
Sterna (typical terns) (21)
Sternula (7)
Thalasseus (crested terns) (7)
Xema (Sabine's gull) (1)

(...) = Species count