The experience and findings of an exploratory effort to characterize the sound emitted by aircraft wake vortices near the ground are presented. A line array of four directional microphones was deployed and recorded the wakes of several commercial aircraft in the approach phase with particular attention being paid to the characterization of background noise. It is found that vortices near the ground emit broadband sound with frequency contents ranging from below 100 Hz to near 2000 Hz and possibly beyond. However, addressing the degree of consistency of the vortex sound would require deployment of a larger array. The mechanism of vortex sound generation and suggestions on future studies are discussed.