Ranganathittu Bird Sanctuary

Located on the banks of the Cauvery River near Mysuru, Ranganathittu Bird Sanctuary is spread over a group of small islets. The islets were formed when a dam was constructed across the Cauvery in the 1700s. Its small size notwithstanding — Ranganathittu covers well under a square kilometre — the isolation of the islets and the abundance of aquatic insects after the monsoon make it a favoured nesting and roosting ground for waterbirds.

Due to the efforts of the ornithologist Dr Salim Ali, Ranganathittu became a designated bird sanctuary in 1940. During his survey of the birds of Mysore, Dr Ali advocated for protection here and eventually persuaded the Wodeyar rulers to declare the area a wildlife sanctuary. The place remains one of the most approachable birding stops in southern Karnataka: close to Mysuru, short on walking, and best experienced from a boat.

Flora and habitat

The sanctuary’s habitat is a mix of river channels, marshy edges and the vegetation that clings to the islets. The view from the water is the point: nests crowded into trees, crocodiles sometimes basking on the banks, and the river carrying the whole scene past at a gentle speed.

Birds and other wildlife

Ranganathittu is known for cormorants, darters, white ibis, storks (including painted and openbill), spoonbills, egrets, herons, terns, swallows, streaked weavers, ducks, teals, sandpipers and kingfishers, among others. Large mixed colonies form in the breeding season, which typically builds through the monsoon and post-monsoon months; winter still offers good viewing, though the character of the visit shifts with the calendar. Mammals and other animals recorded around the sanctuary include fruit bats, bonnet macaques, palm civets, common mongoose and otters; marsh crocodiles are part of the river’s reputation and a reason to stay in the boat and follow guide instructions.

How to reach

By air, Bengaluru is the nearest major airport. By rail, Mysuru is well linked with Bengaluru, Chennai and other cities. By road, Ranganathittu lies roughly 15–20 km from Mysuru — a short drive that makes it an easy half-day addition to a Mysuru stay. Tickets, boat timings and group size limits should be checked at the sanctuary counter on the day; they change with season and water level.

A short note for visitors

Boats are the heart of the visit. Keep voices low near nesting trees, do not lean out for photographs, and do not ask the boatman to push into roosts. Ranganathittu is small enough that disturbance travels quickly. Give the islets their space, and the sanctuary will still feel generous.