Terns

White-winged Tern
Hvitvingesvartterne
Chlidonias leucopterus

Caspian Tern
Rovterne
Hydroprogne caspia

Sandwich Tern
Splitterne
Thalasseus sandvicensis

Common Tern
Makrellterne
Sterna hirundo

Royal Tern
Kongeterne
Thalasseus maximus

Arctic Tern
Rødnebbterne
Sterna paradisaea

Gull-billed Tern
Sandterne
Gelochelidon nilotica