Ruddy turnstone: where and when to see them

The ruddy turnstone is a compact migratory shorebird named for its habit of flipping small objects to uncover food. It breeds around the Arctic but spends the nonbreeding season on coastlines across much of the world, including tropical islands. Its short legs and sturdy bill suit rough shorelines better than deep mud. In the Maldives, visitors are most likely to encounter migrants or nonbreeding birds rather than nesting individuals.

Size

21–26 cm long

Weight

85–150 g

Lifespan

Not reliably established

Status

Check current assessment

Turnstones work methodically along the shore, levering shells, seaweed and small stones with the bill. They often feed in loose groups and join other shorebirds at high-tide roosts. When waves wash over a feeding patch, birds retreat briefly and return as the water recedes. Breeding birds defend tundra territories, whereas tropical visitors chiefly divide their time between feeding, resting and preparing for long migratory journeys. These birds exhibit strong site fidelity, often returning to the same wintering grounds in the Maldives year after year. Their communal roosting behavior helps conserve energy and provides safety in numbers against predators, particularly during high tide.

• Its strong bill can lever objects larger than expected for such a small bird.
• Breeding plumage combines chestnut, black and white in a bold mosaic.
• Its white back and wing markings create a distinctive flight pattern.
• Individuals can show strong fidelity to the same nonbreeding coastline.

In the Maldives, roughly September through April is the most plausible period for northern migrants and winter visitors. The drier part of that interval often improves shore access. A few nonbreeding birds may remain beyond the main migration season. Peak numbers of Ruddy Turnstones in the Maldives are typically observed from October to March, coinciding with the northern winter. During this time, they are a common sight on many atolls, often alongside other migratory shorebirds.

Outside breeding, ruddy turnstones favor rocky shores, reef-flat margins, coral rubble, sandy beaches and wrack lines. They also use jetties and other coastal structures. Arctic nesting habitat is very different, consisting of open tundra near wetlands or the coast. In the Maldives, they are particularly associated with exposed reef flats, sandy spits, and small islets with access to tidal foraging areas. They readily adapt to human-modified environments like harbor walls and fish farm perimeters where food is available.

Coastal invertebrates dominate the diet, including small crustaceans, mollusks, worms and insects hidden under stranded material. Turnstones also exploit carrion and other opportunistic foods. On Arctic breeding grounds they take abundant insects, with occasional eggs or plant material supplementing the diet. In the Maldives, a significant portion of their diet consists of small crabs, gastropods, and bivalves found in the intertidal zone. They are known to flip over pebbles and small debris with their robust bills to uncover hidden prey.

Common name

Ruddy turnstone

Scientific name

Arenaria interpres

Animal group

Birds

Size

21–26 cm long

Weight

85–150 g

Lifespan

Not reliably established

Status

Check current assessment

Identification

Ruddy turnstone differs from black turnstone through its orange legs, stronger black-and-white facial pattern and chestnut upperparts in breeding plumage. Beyond the striking orange legs, note their short, slightly upturned bill, which is uniquely adapted for their 'turning' feeding method. Their bold, pied plumage pattern, even in nonbreeding duller winter dress, remains distinctive with a dark breast band.