The Indian river tern or just river tern (Sterna aurantia) is a bird in the tern family . It is a resident breeder along inland rivers from Iran east into the Indian Subcontinent and further to Myanmar to Thailand, where it is uncommon. Unlike most Sterna terns, it is almost exclusively found on freshwater, rarely venturing even to tidal creeks.

This species breeds from March to May in colonies in less accessible areas such as sandbanks in rivers. It nests in a ground scrape, often on bare rock or sand, and lays three greenish-grey to buff eggs, which are blotched and streaked with brown.

This is a medium-sized tern, 38–43 cm long with dark grey upperparts, white underparts, a forked tail with long flexible streamers, and long pointed wings. The bill is yellow and the legs red. It has a black cap in breeding plumage. In the winter the cap is greyish white, flecked and streaked with black, there is a dark mask through the eye, and the tip of the bill becomes dusky.

The sexes are similar but juveniles have a brown head, brown-marked grey upperparts, grey breast sides and white underparts. The bill is yellowish with a dark tip

As with other Sterna terns, the river tern feeds by plunge-diving for fish, crustaceans, tadpoles and aquatic insects in rivers, lakes, and tanks. Its numbers are decreasing due to the pollution of their habitat.
River Tern
Date Location Count
2019-04-14 07:00Vadla Lake50
2019-04-12 18:30Khirasara Grassland2
2019-04-22 08:30Randarda Lake300
2019-04-12 16:13Indroda Nature Park1
2019-04-21 17:30Timbi Lake1
2019-04-23 07:15Bhandup Pumping Station, Mumbai1
2019-04-20 12:10Mulshi, Pune2
2019-04-10 10:30Kasarsai Dam, Pune2
2019-04-19Raitollem Lake2
2019-04-20 17:00Bhigwan -- Kumbhargaon Bird Sanctuary3
2019-04-13 07:15Pinjore, Kaushalya Dam1
2019-04-21 06:18Jaikwadi Bird Sanctuary20
2019-04-10 06:53Hornbill River Resorts3
2019-04-20 06:31Sri Nagalingeshwara Waterbody3
2019-04-23 18:12Begum Talab, Vijayapura2
2019-04-16 12:00Ganga Barrage Bijnor2
2019-04-19 08:30Chambal Wildlife Sanctuary4
2019-04-12 06:26Balaganur Lake5
2019-04-16 07:21Sakrebyle Elephant Camp3
2019-04-17 09:35Bhadra Wildlife Sanctuary--Lakkavalli2
2019-04-21 17:15Ankasamudra Bird Sanctuary1
2019-04-14 07:40papnash lake forest4
2019-04-14 17:03Kardi, Tumkur1
2019-04-21 07:45Madan Dam4
2019-04-21 08:24Ranganathittu Bird Sanctuary1
2019-04-19 07:15Naguvanahalli2
2019-04-11 06:30Pocharam Wildlife Sanctuary
2019-04-18 07:30ICRISAT Campus4
2019-04-13Nallagandla Lake6
2019-04-11 07:00Ameenpur Lake, Hyderabad
2019-04-21 15:30Osman Sagar Lake10
2019-04-17 17:49University of Hyderabad3
2019-04-14 06:12Kokapet Lake2
2019-04-18 05:52Pench Tiger Reserve--Turia Zone25
2019-04-18 07:00Fox Sagar Lake25
2019-04-13 10:00Gargeyapuram Tank3
2019-04-21 07:20Hessaraghatta Lake1
2019-04-17 07:30Perur Puttuveeki Lake2
2019-04-21 17:00Meenkara Reservoir5
2019-04-12 23:00Thattekkad--Salim Ali Bird Sanctuary2
2019-04-21 06:45Valley School1
2019-04-14 07:40Lalbagh Botanical Gardens2
2019-04-19 15:43Pakhal Lake10
2019-04-19 14:30Nameri NP2
2019-04-11 16:11Yingjiang--Daying River (大盈江)2