Study uses microphones to eavesdrop on the secret lives of birds

Scientists have discovered that they can eavesdrop on the secret lives of birds using networks of inexpensive microphones, revealing complex behaviors across vast wilderness areas, according to research published in the journal Ecology. Previously, microphone technology that records sounds from wildlife had mostly been used to determine if a species was present in an area. Recordings could tell researchers what birds were present, but not what the birds were doing.