"If ducks are flying parallel to the bank and into the wind, and they come to that extended line of decoys, they'll almost always follow it in and land in the hole between the two clumps," Karnes attests. "Now if the ducks are coming downwind (from the other direction), when they see the line of decoys, they'll hook around it and sail right into the hole. So, with this set, regardless of which way the ducks are coming, the shooting will be right in front of the blind."
Still, sometimes the birds don't land where he expects, and if this happens, Karnes is quick to adjust his spread. "The first couple of flights will tell you how the ducks are going to respond to the setup. If the first flight lands short, you can expect following flights to do the same thing, so don't wait to make your adjustment. Go on and do it right away. You might pull your decoys in closer to the blind or angle the curving line more-whatever you have to do to pull the ducks into good range."
Also, Karnes is quick to change hunting locations if he sees ducks working a nearby area better than the spot where he is set up. "That's one of the good things about not setting out too many decoys. You can pick 'em up and move quickly. And besides, you don't need all that many decoys for diving ducks. They're not the smartest birds in the world, and there's nothing complicated about pulling them in. If you just set out enough decoys to catch their attention when they're flying by, you'll have plenty of shooting."