Do Rats Eat Snails . The texture is very similar t. When several options are available, norway rats often choose fresh food that offers a balanced diet. What Do Wild Rats Eat and Drink? Rat Diet Exploration from pestlockdown.com Also, rats may get secondary poisoning. From time to time we've had rats burrowing/living in our open compost heap and i've come across a number of broken snail shells when digging the copost out so i suspect it's quite likely. I noticed the snail and slug problem is also way down.