Anous (noddys) (4)
Chlidonias (black terns) (4)   (1)
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)   (1)
Sterna (typical terns) (21)   (1)
Sternula (7)   (1)
Thalasseus (crested terns) (7)   (1)
Xema (Sabine's gull) (1)

(...) = Species count
(...) = Endangered count
(...) = Invasive count