This Web site contains audio clips of bat echolocation calls from the Bat Ecology and Acoustics Lab at the University of Bristol. The calls, representing 15 species of bats found in Britain, are time-expanded recordings detectable to the human ear. To hear the entire repertoire of calls for each species, users must download the files and open them with a sound analysis program such as Gram (program link provided). Otherwise, a selection of calls for each species may be heard using any program that recognizes WAV files. The site also provides a text file describing in detail how the echolocation calls were recorded. Anyone is welcome to download the calls for noncommercial purposes; bat biologists and non-experts alike should find this Web site interesting.
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