Patent ID: 7074107

Claim:
A game call comprising: a) a main body forming a resonant chamber having a whistle vent and at least one opening adapted to be closed and opened by finger contact; b) a mouthpiece at one end of said resonant chamber and in fluid communication therewith; c) a roller suspended within said resonant chamber and aligned transverse to the longitudinal axis of said mouthpiece, said roller having first and second ends thereof and adapted to freely rotate about its longitudinal axis; d) a resonant chamber volume adjuster, said volume adjuster is adapted to selectively change the volume of said resonant chamber during use whereby the oscillation rate of said roller may be varied to control the sound emitted by the game call; and e) a roller support, said roller support comprising a pair of opposed conical sections between which said roller is disposed, said conical sections extend transverse to the longitudinal axis of said resonant chamber and each provided with a shoulder portion configured to receive a separate one of said roller first and second ends.