"A song that ‘went viral’ across a species of bird has been tracked by scientists for the first time. Most of our feathered friends are slow to change their tune—preferring to stick with tried-and-tested songs to defend territories and attract females. Now a 20-year study has found how one rare ‘tweet’ travelled nearly 2,000 miles across Canada and the US. The analysis—based on recordings collected by bird watchers from 2000 to 2019—found that the new beat wiped out a historic song ending in the process. White-throated sparrows from British Columbia to central Ontario have ditched their traditional three-note-finish in favor of a unique two-note-variant. ..."
Good News Network (Video)
The Atlantic: The Birdsong That Took Over North America (Audio)
YouTube: A Viral new bird song in Canada, White-Throated Sparrow song has changed, from 3 notes to 2 notes
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