River Tern
NameRiver Tern
Common NameRiver Tern
Scientific NameSterna aurantia
FamilyLaridae
Wingspan (cm)78.5
Length (cm)40.5
Weight (g)175
Plumage DetailsAdults in breeding plumage display a glossy black cap extending to the nape, a bright yellow bill, and orange-red legs. Their upperparts are pale grey, while the underparts are pure white. The tail is deeply forked with white outer feathers.
Vocalization / CallVocalizations include harsh, grating calls such as 'kreek' or 'karr-karr', often given in flight or when disturbed. They also produce softer 'chup' notes.
Primary Dietpiscivore
Primary Habitatswetland
Conservation Statusvulnerable
Geographic RangeFound across the Indian subcontinent and Southeast Asia, including countries like India, Pakistan, Nepal, Bangladesh, Myanmar, Thailand, Cambodia, Laos, and Vietnam, primarily along major river systems and large freshwater bodies.
Identifying FeaturesBlack cap, Bright yellow bill, Orange-red legs, Pale grey upperparts, White underparts, Deeply forked tail
Description
The River Tern is a medium-sized tern characterized by its striking black cap, bright yellow bill, and grey upperparts contrasting with white underparts. It is typically found foraging for fish over large freshwater bodies, often hovering before diving to catch its prey.
