Do birds other than song thrushes break snail shells on stones?
Though all of our breeding thrushes have been recorded feeding on snails, it is only the song thrush that is proficient in opening larger shells by smashing them against stones or other hard objects. The other thrushes tend to feed on smaller snails, which are easily broken open with the bill. Blackbirds have been seen to copy the anvil technique on rare occasions , though far less effectively, and may also rob so ong thrushes of their hard won prey. Snails are of seasonal importance for thrushes, taken when favoured foods s are less abundant, and feature most common ly during dry summer we eather or late winter.
Snails are a vital part of the song thrush diet.