Museum of Discovery - Tree Frogs: Bird-voiced Tree frog Calling from April to August Sounds like: Many rapid whistles Listen to call: http://www.herpsofarkansas.com/wiki/uploads/Frog/HylaAvivoca/DS300047.mp3 | Facebook
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The Lang Elliott Audio Library: The Calls of Frogs and Toads : Breeding Calls and Sounds of 42 Different Species by Lang Elliott (2004, Trade Paperback) for sale online | eBay
![Frog Sounds - Spring Cricket & Frog ft. Sleep Crickets & Relaxing Music Therapy MP3 Download & Lyrics | Boomplay Frog Sounds - Spring Cricket & Frog ft. Sleep Crickets & Relaxing Music Therapy MP3 Download & Lyrics | Boomplay](https://source.boomplaymusic.com/group10/M00/11/18/c2a8afb599ff44a396a5aa729fd2a719.jpg)