When populations fall, fledglings can struggle to learn the right notes to attract mates. But research on how birds communicate offers hope for species’ survival Listening to birdsong is one of life’s great joys, but when researchers heard a particular tune emerging from a tree in a Buenos Aires...
Source: [Guardian International](https://www.theguardian.com/environment/2026/oct/13/ornithology-trill-why-birds-sing-birdsong-dialects-tutors-ai-aoe)