| Anous stolidus Chlidonias hybridus Chlidonias leucopterus Chlidonias niger Chroicocephalus genei Chroicocephalus philadelphia Chroicocephalus ridibundus Gelochelidon nilotica Hydrocoloeus minutus Hydroprogne caspia Ichthyaetus ichthyaetus Ichthyaetus melanocephalus Larus argentatus Larus cachinnans Larus canus Larus delawarensis Larus fuscus Larus glaucoides Larus hyperboreus Larus marinus Larus michahellis |
Leucophaeus
atricilla Leucophaeus pipixcan Onychoprion fuscatus (fuscata?) Pagophila eburnea Rissa tridactyla Rhodostethia rosea Sterna dougallii Sterna forsteri Sterna hirundo Sterna paradisaea Sternula albifrons Thalasseus maximus Thalasseus sandvicensis Xema sabini |