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Podcast: BirdNote
Episode:

Why Birds Sing
Category: Religion & Spirituality
Duration: 0
Publish Date: 2018-03-14 02:00:00
Description: Why do birds sing? Ornithologists have learned that the longer hours of light that come with spring trigger the release of hormones in birds. These hormones prompt the enlargement of the birds' gonads which, in turn, stimulate male birds to sing.
Total Play: 0