https://www.youtube.com/watch?v=xvzeKCq5nvg
These palm cockatoos have rhythm | Australia RemasteredThe palm cockatoo is the only animal in the world that uses a tool to make music. Each male drums to his own beat and it's thought females may assess the qua...www.youtube.comhttps://en.m.wikipedia.org/wiki/Palm_cockatoo
인간이 아닌 드러머
사람보고 배운거일수도..