Biophony: Music of the Wild

Biologist Bernie Krause believes animals communicate with each other on their own frequency, and when you put all those frequencies together, they interact in a way not unlike a symphony orchestra. He calls it “biophony.”
“I was sitting here listening to these sounds and it occurred to me that these sounds were kind of symphonic,” Krause says about one of his research first trips to Kenya. “All of the insect voices, and the mammal voices, and the frog voices … all of these critters had found channels to vocalize in without their voices being masked by other creatures.”
Jill DuBoff talked to Krause about his research in the wild, and got an even wilder story about his pre-scientist days as a 1960s music pioneer.  
Krause is the author of The Great Animal Orchestra: Finding the Origins of Music in the World’s Wild Places.
(Originally aired August 29, 2008)
  
Listener Challenge: Name that Sound
Bernie Krause made a recording of this mystery creature: what is it?