River Tern Sterna aurantia

Family: Laridae (Gulls, Terns, Skimmers)

Authority: Gray, 1831

Red List Category

Criteria: A2bcd+3bcd+4bcd

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Justification of Red List category
This species has been uplisted to Vulnerable on the basis that increasing human disturbance, dam construction, waterbody management, and predation are causing a rapid population decline. Whilst the situation is more concerning in Southeast Asia despite its marginal occurrence here, localised declines also continue to occur across India, of which currently holds the majority of the population. Comprehensive monitoring is however required to limit uncertainty in population trends.

Population size: 20000-70000

Population trend: Decreasing

Extent of occurrence (breeding/resident): 9,330,000 km2

Country endemic: No

Realm - Indomalayan
Realm - Palearctic
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Marine biome

Recommended citation
BirdLife International (2022) Species factsheet: Sterna aurantia. Downloaded from on 01/07/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 01/07/2022.