Ruddy turnstone but it feeds mainly on invertebrates. Insects are particularly important in the breeding season. At other times it also takes crustaceans, molluscs and worms. It often flips over stones and other objects to get at prey items hiding underneath; this behaviour is the origin of the name "turnstone". It usually forages in flocks. They have also been observed preying on the eggs of other bird species such as gulls, terns, ducks, and even other turnstones, though this behaviour is uncommon. In the majority of observed cases, turnstones typically go after undefended or unattended nests, puncturing the shells with their beaks
I Don't Know What It Is Marius de Vries admitted that "I Don't Know What It Is" was one of the most complex production challenges he had ever faced, with its hundreds of layers of separate orchestral, choral, and vocal parts. Between "running around" and "chugging along" "on a train going God knows where to" in a sort of aimless wander, transportation is a major theme of the song. Wainwright alludes to several locations, from precise ones such as Calais, Dover, Poland and Lower Manhattan to more abstract locales like Heaven, Hell, and Limbo. Wainwright said the following of the song: References are also made to