evidence: Michigan is home to nine bat species. All of Michigan’s bats primarily eat insects. These insectivores provide important benefits to farmers and landowners by consuming harmful insects that damage crops. All bat species in Michigan are protected and may not be harmed. If you find a dead bat outdoors, contact your local DNR office to have it submitted for disease testing. [...] Groundhogs, also known as woodchucks, are large squirrels that are strict herbivores. They eat grasses, plants, fruits, vegetables, seeds, and other plant matter. Groundhogs hibernate in their dens during the winter months. Groundhogs dig large holes and long underground tunnels that can cause structural damage, crop/ garden damage, or damage to farm equipment or livestock.