Musicians of the Night: The Nocturnal Singing of Willie Wagtails

The nocturnal singing of willie wagtails has fascinated researchers. Just as its ecological equivalent, the nightingale, it is famous for also singing at night in Asia, North Africa, and Europe. Their singing indicates the beginning of spring and the nightingale's mating season. In Australia, the less popular and nocturnal willie wagtail also howls by the moonlight.