The Bookend Trust is a not-for-profit education initiative, founded in Tasmania in 2008, which inspires people of all ages and abilities to develop careers and interest in the environment, and to find positive solutions to environmental problems. This includes the NatureTrackers program of citizen science projects, inviting all Tasmanians to help track the status of our threatened species and better understand their needs.
Around the state, a number of Libraries Tasmania public libraries host acoustic monitoring recorders for Bookend's CallTrackers project. The two organisations are collaborating to introduce potential future CallTrackers to the recorders and the overall project.