If you're hunting solely on your 40 acres, you're going to probably have to change up your distress calls. The two coyotes you've already called in probably won't come in very eargerly to the same call now that they've busted you. Try distress calls from animals that aren't even in the area. Electronic calls are nice for this reason because you find a wider veriety of distress calls. It's a blast, I live in Marquette and coyotes are thick in the U.P., just very little open ground to call over like western hunters have. If midwest coyotes were easy to call in you'd see more midwest coyote videos.