Fishing for American shad in the Delaware River is my family's tradition every spring, but that doesn't mean we--or anyone else--have them figured out. Success revolves largely around the number of shad migrating through the stretch of water you're fishing, but even when the run is thick, the fish can be notoriously finicky. Figuring out how to break their code isn't easy. Most anglers line the banks or anchor boats in the spots most likely to get their shad darts or flutter spoons in the face of a feisty buck or hefty roe. The migrating shad hit the lure out of annoyance, supposedly, because these fish don't actually feed--or so I was always taught. In truth, the behavior of American shad varies tremendously from region to region.