How broadbills make loud wing song

Broadbills produce a startlingly loud sound with their wings to mark off territory, as this video shows. Researchers have hypothesized that it is the outermost wing feathers that make the sound. But a recent study by a team of researchers at the University of California, Riverside, led by biologist Christopher Clark shows that it is not the outermost feather wings but the ones just inside of these feathers that make the klaxon-like sound. Videos of the broadbills were shot in Uganda, Africa, by Clark and his team.

Provided by the University of California-Riverside

Runtime: :48

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