In all seasons, the plumage of the Ruddy Turnstone is dominated by a harlequin-like pattern of black and white.
Breeding birds have reddish-brown upper parts with black markings.
Non-breeding adults are duller than breeding birds and have dark grey-brown upperparts with black mottling and a dark head with little white.
Juvenile birds have a pale brown head and pale fringes to the upperpart feathers creating a scaly impression.
Top & Left: Ruddy Turnstones in non-breeding plumage. IJmuiden, The Netherlands, 17 November 2009
Middle: Ruddy Turnstones in breeding plumage. Petten, The Netherlands, 14 August 2009