Mr Thrush working at his Anvil
|Lumix G3. 100-300mm lens. 1/320 at f5.6. 300mm. ISO800|
The Song Thrush will search for and eat Snails especially when the ground is hard and worms are in short supply. It will use the same location to take the snails to and smash their shells open. It often uses the same stone on the ground in a concealed place to do this. If you find an accumulation of broken snail shells then you have located the stone. Hence the term used for the stone, "The Thrush's Anvil".