Study finds human speech and birdsong share sound patterns

Researchers compared the songs of 367 bird species with speech and song from 52 human languages. Their peer-reviewed study in Science reports shared patterns, such as longer final syllables at the end of phrases.
The team, including Logan, Jon and Kendra, annotated more than 70,000 birdsong syllables from public recordings. Both birds and humans kept pitch changes small between neighbouring syllables and used regular rhythms. Birds that learn their songs did not differ clearly from those that do not. The authors say they need more studies to explain the patterns. Their idea is that breathing and vocal muscles may shape them.