Ring-ouzel (Turdus torquatus).—Drawing by John P. O'Neill/EB Inc.
Species (Turdus torquatus) of songbird in the thrush family, characterized by a white crescent on the breast. A blackish bird, about 10 in. (25 cm) long, it breeds locally in uplands from Britain and Norway to the Middle East. The name was formerly applied to a closely related European blackbird (T. merula). The dipper is often called water ouzel.