Want to attract insect-eating bats to your garden? These nocturnal mammals eat hundreds of mosquitoes, wasps, gnats and beetles in a single evening. To attract bats to your yard, install bat houses that provide a safe place for bats to roost during the day and to raise their young. Ideally, they should be placed facing the southeast and 12-15 feet above the ground. Bats are attracted to houses placed on poles or on buildings. Finally, be patient. It may take a year or two to attract bats to your bat house.