Hopefully this won't turn into the dekes vs. no dekes argument. I use them very effectively in roads and large fields. My go-to setup is a hen on the ground with a jake over her. I've had that bring in birds so many times I can't count them. Maybe it has also spooked birds, but if it has it's been so few I haven't noticed. I have sometimes used only a hen, but a jake over a hen makes them real mad. I usually have them run in to teach the jake a lesson. Calling a little brings them in, then the decoys can prevent them from hanging up out of range.