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Birdsong Mystery

Only Available in Archive Formats.
Birdsong Mystery

Birdsong Mystery

Birdsong Mystery

Only Available in Archive Formats.

Commentator Brad Klein tells the story of a treetop mimic in New York City's Central Park. For several years, careful birdwatchers noticed that they heard the Black-Throated Green Warbler weeks before they saw it. This puzzled them — until someone noticed that the Warbler's song was alternating with that of the White-Throated Sparrow.

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