
Photo: Charles J. Sharp · CC BY-SA 4.0
Sterna aurantia
Habitat
Primarily freshwater rivers
Range
Pakistan east across the Indian subcontinent to Myanmar, Thailand and Cambodia
The river tern, also called the Indian river tern, is the largest species currently placed in Sterna. It is a resident breeder along inland rivers from Pakistan east across the Indian subcontinent to Myanmar, Thailand and Cambodia. Unlike most typical terns, it is almost exclusively associated with fresh water and rarely enters even tidal creeks. (Wikipedia, general species account)