Scientists find the secret of birdsong’s ‘spectacular diversity’ BBCScientists reveal eight building blocks that make up songs of all birds The IndependentWhy and how birdsong differs across the world—and the eight motifs that tie them together Phys.orgBirds Build Their Songs Using Just Eight Musical Elements, Study Finds National Audubon SocietyBehind Complex Birdsongs: Eight Core Sounds Newser
