This video says about itself:
13 July 2016
Birds can use their feathers for much more than flight. In some species, for example, they produce sound. The secondary wing feathers of the male Club-Winged Manakin, a bird from South America, are large and rigid. He strikes them together at about 107 times per second to create a buzzing sound, which is used during courtship displays.
Dear Kitty. Some blog 