I had the pleasure to write a commentary in Science about the very comprehensive paper by @quentinbacquele.bsky.social et al. (same issue), on the factors influencing birdsong across the world. Link to my commentary: www.science.org/doi/10.1126/..., originally paper: www.science.org/doi/10.1126/...
Birdsong diversity across the worldBirdsong motifs are shaped by evolutionary history, biological traits, and environmental constraintswww.science.org