any of certain small, insect-eating Old World thrushes (esp. Saxicola torquata) with a black head and back and a white rump
Origin:
from its cry, like the sound of pebbles knocked together
See stonechat in American Heritage Dictionary 4
noun
A small Old World thrush (Saxicola torquata) of open, grassy regions, the male of which has a black head, dark wings and tail, and chestnut underparts.
Origin:
Origin: From the resemblance of its call to the sound of falling pebbles