Bats rely on echolocation, or active sensing, as their primary sensory modality. For species that roost in large cave colonies, echolocation comes with the added cost of sensing in dense groups. Our lab explores the adaptations wild bats make when using their sonar in different behavioral contexts. We utilize 3D video tracking and mobile platforms including drones, zip-lines and falconry to explore the link between acoustic and locomotive behavior of bats in their natural environment.