For Male Northern Cardinals, the Redder the Better

This audio story is brought to you by BirdNote, a partner of the National Audubon Society. BirdNote episodes air daily on public radio stations nationwide. https://nas-national-prod.s3.amazonaws.com/200623-whats-behind-those-lus… Transcript: This is BirdNote. Male Northern Cardinals, Scarlet Tanagers, and House Finches all have striking red plumage that’s thought to play a role in attracting mates. To develop red feathers, […]

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