<ul><li>Birdsong evolves over time due to migration and aging in bird populations, a study by the University of Oxford reveals.</li><li>Researchers used AI to analyze great tit birdsongs, finding that songs are shared, remain local, or are upheld by older birds' memories.</li><li>The study, published in Current Biology, confirms long-theorized notions of bird song evolution.</li><li>Data collected in Wytham Woods over three years showed age influences song similarity, and migration slows song evolution.</li><li>Older birds act as musical archives, preserving outdated tunes, while younger birds introduce and adapt to new songs rapidly.</li><li>The study highlights how demographic changes in bird populations shape their distinctive song cultures over time.</li><li>The findings could aid conservation efforts by monitoring bird community changes through birdsong variations.</li><li>The researchers have shared their dataset to encourage further exploration in this field of study.</li><li>This study sheds light on the dynamic evolution of bird songs, emphasizing the impact of demographic factors like aging and migration.</li></ul>

A change of tune: Birdsong evolves, says AI-powered study

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