Ruddy Turnstone (Arenaria interpres) Searching for morsels of food, Rye, East Sussex, UK Ruddy Turnstone (Arenaria interpres) searching for little morsels Rye, East Sussex, UK. The Turnstone aptly named, it will flip stones of almost its own body weight has been recorded feeding on a very wide range of prey, including bird's eggs, chips and even corpses, in this case a crab shell.