Microphone Set Out to Record Songs and Calls of Migratory Birds (IMAGE)

Columbia University

Microphone Set Out to Record Songs and Calls of Migratory Birds

Caption

Researchers set out four microphones like this one in the foothills of Alaska's Brooks Range to record songbird calls over five breeding seasons. In a new study, they describe an automated tool for sifting through thousands of hours of recordings to estimate when migratory birds arrive en masse in the Arctic.

Credit

Heather Greaves

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