Play the wind and make the big guy loose it. He will come. Just be aggressive and patient. keep the wind in your face.
Is there a trick to keeping the wind in your face when it's constantly swirling every few minutes? Also, when it does swirl for a few seconds; how long is the down wind side affected with human scent? Is it just until the wind comes back into your face, or does your scent stick on the vegetation for a little longer?