African skimmer 
American Herring Gull 
Andean gull 
Arctic tern 
Armenian gull 
Audouins gull 
Belchers gull 
Black Skimmer 
Black tern 
Black-billed gull 
Black-headed gull 
Black-legged kittiwake 
Black-naped tern 
Black-tailed gull 
Bonapartes gull 
Brown noddy 
Brown-headed gull 
Cabot's tern 
California gull 
Caspian gull 
Caspian tern 
Common tern 
Damara tern 
Elegant tern