What I know is Snails can survive being eaten by birds.

New research has shown that snails can survive passing through a bird’s digestive tract. Some snails have been able to crawl out of bird waste alive, unscathed, and even able to produce offspring after the whole ordeal.

Researchers at Tohoku University found that two different species of birds that prey on snails have been able to pass live snails through their digestive systems. 14.3% of the snails eaten by the Japanese white-eye and 16.4% of those eaten by the brown-eared bulbul survived the digestive process.