Bigfoot Whisper?

This was recorded at night.  We had picked up several signs of Bigfoot in the area, and were standing quietly in the dark next to an old cemetery in an isolated stretch of road in a remote area.  NO other roads, vehicles, or residences were in this area - we were completely alone.  We had Bionic Ears pointed across the cemetery and into the woods on the other side when I picked up and recorded this, which sounds a bit like the English words "Did you (slurred together as 'djou') Look in the back?".  The whisper is first on this tape, then I ask Nathan "What's that"? thinking he had whispered to me.  He replies "I didn't say anything", and I say "Oh Great!" realizing that this was not one of us.