Bird changes colouring

• Migratory shorebirds of the plover family that turn over stones in searching for food

Wikipedia Word definitions in Wikipedia
Turnstones are two bird species that comprise the genus Arenaria in the family Scolopacidae . They are closely related to calidrid sandpipers and might be considered members of the tribe Calidriini . The genus name arenaria is from Latin arenarius , "inhabiting ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Turnstone \Turn"stone`\, n. (Zo["o]l.) Any species of limicoline birds of the genera Strepsilas and Arenaria , allied to the plovers, especially the common American and European species ( Strepsilas interpres ). They are so called from their habit of turning ...

WordNet Word definitions in WordNet
n. migratory shorebirds of the plover family that turn over stones in searching for food

Wiktionary Word definitions in Wiktionary
n. Either of two species of coastal wading bird, ''Arenaria interpres'' and ''Arenaria melanocephala'', that breed in the Arctic and readily turn stones or seaweed looking for hidden invertebrates.