I suspect from the bird's perspective what really matters is breaking up your outline so likely nearly any camo will do. When I started hunting turkeys up here in MN spring/green colored camo patterns were non existant so I used fall patterns. Of couse, I have turkey fever so I'm always buying new stuff. These days it's Mossy Oak Obsession or Realtree APG as having more green in the mix looks more realistic to my eye.