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Samuel Sober of Emory University has teamed up with Michael Brainard of the University of California, San Francisco to execute an audio-monitoring experiment. Sober and Brainard attached cushioned headphones to the ears of birds in the hopes of learning more about how the animals tune themselves.

The earphones relay recorded sounds to the scientists with pitch-oriented versions of the material. If the shift in pitch is minimal, Sober and Brainard found that the birds try to adjust it. If the pitch is far off however, they have been found to ignore it. The masterminds behind the project will at the end of the study gain more information about how fowl interpret and react to their own voices.