Which of these birds cracks open snail shells by banging them against a stone?

The song thrush (Turdus philomelos) is a thrush that breeds across much of Eurasia. It has brown upperparts and black-spotted cream or buff underparts and has three recognised subspecies. Its distinctive song, which has repeated musical phrases, has frequently been referred to in poetry.

The song thrush breeds in forests, gardens and parks, and is partially migratory with many birds wintering in southern Europe, North Africa and the Middle East; it has also been introduced into New Zealand and Australia. Although it is not threatened globally, there have been serious population declines in parts of Europe, possibly due to changes in farming practices.

Land snails are an especially important food item when drought or hard weather makes it hard to find other food. The thrush often uses a favourite stone as an "anvil" on which to break the shell of the snail before extracting the soft body and invariably wiping it on the ground before consumption. Young birds initially flick objects and attempt to play with them until they learn to use anvils as tools to smash snails.