I do quite a bit of layout blind hunting and the best camo pattern I have found for that is Mossy Oak® Duck Blind™. Duck Blind camo works great for me because it has corn stalks, natural grass, fox tail (stuff you would find in a dry field) and a good shade of brown behind it that makes everything blend together well. The key is to make your ground blind disappear, which requires more than just a good camo pattern. To really make your blind invisible, grab a bunch of natural grass that you find around your hunting spot. When brushing your blind, take the natural grass you found and put it through the brush straps on the blind, but also put some around your blind and loosely spread it over your blind to make the edges disappear. Here is another useful tip - instead of lining up your blind directly toward your decoys, try turning your ground blind at a 45 degree angle so that when the ducks or geese are coming in you'll be able to have a greater range of motion to swing your gun.
Seth Hartman