This provides a link to the 15 days of audio recordings that were specially collected to search for bat species at the Gympie National Park site (26◦  3’ 49.6” South, 152◦ 42’ 42.3” East). A link is provided to the Ecosounds website (Truskinger, A., Cottman-Fields, M., Eichinski, P., Towsey, M., & Roe, P. (2014). Practical Analysis of Big Acoustic Sensor Data for Environmental Monitoring. Paper presented at the 2014 IEEE Fourth International Conference on Big Data and Cloud Computing, Sydney, Australia). This link takes you to the visualisation page where you will see 15 green boxes, each box marks the 12 hours of recording on each of the 15 days. These can be moved left or right to line up with the central shaded area which overlays the green boxes. When the selection box overlays a recording, select a time and press the words "Go to.....". You may like to go to 18:10 on the 8 August 2017 to see some bat calls between the frequency of 40 and 45 kHz.