During the day, an American Robin, a member of the thrush family, sings a lovely, familiar song of rich phrases. But as the sun begins to set, robin song takes on a different character. From sunset until dark, a robin adds ethereal whispered notes to its carol, creating a song of remarkable grace and complexity. In the high latitudes, where twilight lingers late into the evening, a robin may expand its daytime carols into a twilight symphony that continues for hours.
More info and transcript at BirdNote.org.
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