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.
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Low-Light Telephoto Systems
Identifying specific features of the Caspian Tern requires high-contrast magnification. Check out the top-rated 8x42 optics.
