The World

BIRDNOTE®/Urban Birds Change Their Tune

To make themselves heard in noisy city gardens, urban birds sing higher and faster.

With spring in the air, birds are singing loudly to attract mates and claim territory. As Michael Stein reports in today’s BirdNote®, noisy human cities are forcing urban birds to change their tunes.

BIRDNOTE®/Urban Birds Change Their Tune - The World from PRX