Caspian tern

The Caspian tern is a 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 hudros, “water”, and Latin progne, “swallow”.
Scientific name: Hydroprogne caspia
Conservation status: Least Concern (Population increasing)
Mass: 640 g (Adult)
Length: 47 – 54 cm
Rank: Species
Family: Laridae