Larus glaucescens
Larus delawarensis
Larus argentatus
Larus pacificus
Larus hyperboreus
Larus fuscus
Larus occidentalis
Larus californicus
Larus dominicanus
Larus smithsonianus
Ichthyaetus ichthyaetus
Larus michahellis
Larus marinus
Larus cachinnans
Chroicocephalus genei
Chlidonias leucopterus
Chlidonias hybrida
Chlidonias niger
Gygis alba
Chroicocephalus novaehollandiae
Leucophaeus atricilla
Chroicocephalus philadelphia
Chroicocephalus hartlaubii
Hydrocoloeus minutus
Chroicocephalus ridibundus
Rissa tridactyla
Anous stolidus
Anous tenuirostris
Anous minutus
Hydroprogne caspia
Thalasseus sandvicensis
Sterna sumatrana
Onychoprion fuscatus
Thalasseus bergii
Sternula albifrons
Sterna hirundo
Thalasseus maximus
Thalasseus bengalensis