Museum of Discovery - Cricket Frogs: Blanchard's cricket frog Calling from May through July Sounds like: cricket clicking sounds, or two rocks clacking together Listen to call: http://www.herpsofarkansas.com/wiki/uploads/Frog/AcrisBlanchardi/DS300033 ...
Blanchard's Cricket Frog (Acris blanchardi) – Amphibians and Reptiles of Iowa