Common Tern - Visdief - Sterna hirundo
by Michael Kars
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White-cheecked Tern (Sterna guancebianche)
by Daniele Occhiato
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Arctic Tern (Sterna paradisaea)
by Dave Barnes
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Arctic Tern (Sterna paradisaea)
by Geert Bauke Kortleve
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Sterna hirundo (common tern - rondine di mare)
by robertoparmiggiani
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Common Tern (Sterna hirundo)
by Dave Barnes
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Reuzenstern (Sterna caspia)
by Thomas Luiten
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Visdief - Common tern - Sterna hirundo
by Ton, Ben & Rob Nagtegaal
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Little Tern ( Sterna albifrons )
by Mark C
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Sandwich Tern - Sterna sandvicensis
by mvphoto
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