Gather the players into a circle and then pick a frog and a fly. The object of the game is for the blindfolded frog to catch the fly by tracking the sound of the fly. The fly says ";buzz, buzz"; but can only speak in response to the frog calling ";croak, croak."; The players in the circle can make the sound of the wind by humming. When the frog catches the fly, the fly becomes the frog and another fly is chosen.
Source: From the original site.