First, there's no such thing as a "Garden" Snake. It's a GARTER Snake, and those eat small fish, small frogs, tadpoles, and earthworms. Second, we do not have Grass Snakes in the United States. That species if found in Europe, and it eats the same thing that Garter Snakes eat. We DO have Green Snakes, which are small, slender, bright green snakes that usually are found in trees. These are insectivorous snakes and eat primarily soft-bodied insects, but they are especially fond of non-fuzzy types of caterpillars, though some will eat crickets, as well.
