Bird · Sterna aurantia

River Tern

IUCN VU · Vulnerable

A sharp, fork-tailed tern with a deep yellow bill. The species has been uplisted to Near Threatened as dams and disturbance eat into the sandbank rivers it breeds on.

👀 How to recognise it

Watch for the hover-and-drop over open water: it stalls, folds and hits the surface bill-first. Grey above, white below, black cap in the breeding months.

Protection

The IUCN raised its threat category in recent assessments.

Where to see it

Mysore

Its fortunes track river management directly: sand mining and released dam water flood the same rock islands the terns need, which is why river terns have become a marker species for the health of peninsular rivers.

Ranganathittu Bird Sanctuary

Ajmer

A tern on a city lake is a reminder that Ana Sagar is a working wetland and not an ornamental pond: the same water that carries pedal boats holds enough fish for a breeding tern. The river tern is resident on Ana Sagar and one of the more interesting birds on the lake.

Ana Sagar Lake (often) · Foy Sagar Lake (Varun Sagar)

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