Dan the area I pointed out is also a very good listening post beause of its location in the center of your hunting area.Get on the highest point and on a calm morning.You should be able to hear birds from a good distance in all directions.The water provides excellant acoustics and sound should travel to you clearly without being muffled as much by trees and ridges, etc.Its a great place to start.From thier you can fine tune your strategy to put you on the spot, on the spot.So to speak.Might take 2,3,or 4 days to really put the puzzle together.
Good luck!