Caspian Tern
räyskä · Hydroprogne caspia
Photo: Mdf, CC BY-SA 3.0
Family: Laridae (Lokit) · Size: 48–55 cm
The Caspian tern is the world's largest species of tern, with a subcosmopolitan but scattered distribution. Despite its extensive range, it is monotypic of its genus, and has no accepted subspecies. The genus name is from Ancient Greek hudro-, "water-", and Latin progne, "swallow". The specific caspia is from Latin and, like the English name, refers to the Caspian Sea.
Where and when to see it
This is a sensitive species: FinBIF hides when and where most of its sightings were made, so no places are suggested.