Ruddy Turnstone (Arenaria interpres) lives in coastal wetlands across Sub-Arctic and Arctic regions. It feeds on mollusks and crustaceans. Its conservation status is Near Threatened.
Hear the Ruddy Turnstone
A real field recording of the Ruddy Turnstone, made in the wild.
Ninety-five percent of wintering ruddy turnstones return to the same coastline the following autumn, showing a remarkable site fidelity. A 2009 study of birds wintering along the Firth of Clyde documented this high return rate, indicating that individuals often reuse the exact stretch of shore they used the year before. Such loyalty to specific wintering locations helps them exploit familiar foraging grounds and safe roosts each season.
Ruddy turnstones are among the longest-lived wader species, with adult mortality staying below fifteen percent each year. Their average lifespan reaches nine years, yet some individuals have been recorded living up to twenty years, reflecting the species' low yearly death rate. This longevity, combined with their wide breeding and wintering range, contributes to the overall stability of their global population.
Ruddy turnstones sometimes raid the nests of other birds, puncturing the shells of gull, tern, duck and even fellow turnstone eggs, although this egg-predation behaviour is recorded as uncommon. Observations show they usually target undefended or unattended nests, using their bill to break the shell and access the contents. While not a primary food source, this opportunistic feeding adds a occasional protein boost during the breeding season.
In turnstone flocks, dominant birds monopolise the routing technique, flicking seaweed to expose hidden prey. Routing consists of flicking, bulldozing and pecking seaweed to reveal small crustaceans or gastropods. Dominant individuals tend to use this method while keeping subordinates from doing so, and when the dominants are temporarily removed some subordinates begin to route themselves. This shows that social rank directly shapes foraging choice.
The bird habitually flips stones and other objects to uncover hidden invertebrates, a behaviour that gave rise to its name turnstone. Using its dark, wedge-shaped bill of 2-2.5 cm length, it flicks stones to expose littorinid snails and gammarid amphipods. It carries out this stone-turning while moving in flocks along rocky shores, allowing many individuals to exploit the same foraging patches.
Sources
Every fact above was checked against these pages, and kept only where one of them states it.
As the tide ebbs, the Ruddy Turnstone emerges, a diminutive yet dynamic figure, its mottled plumage blending seamlessly with the rocky shoreline as it scurries to uncover hidden treasures. With an air of restless energy, it darts and weaves, its black-and-white feathers glistening with dew, as it expertly probes every nook and crevice in search of sustenance. In its annual migrations, this intrepid bird undertakes a remarkable journey, bridging the gaps between the Arctic tundra and the sun-baked beaches of the southern hemisphere, a testament to its unyielding spirit and adaptability.
Advertisement
Hear the Ruddy Turnstone, and 4,400+ more
Real recorded sounds, 11 nature games and a free Daily 5, 1v1 quiz duels, conservation wins and a safe Kids mode. Free on Feravox.
