Abstract: The present pulley action decoy system enables a single hunter or other person to simultaneously and collectively move a series of waterfowl decoys floating in a shallow body of water, to simulate the movement of a resting flock of waterfowl. The decoys may be distributed in an apparently random pattern, but are linked by a single actuation line, with branches optionally extending from the line. The distal end of the line, and branch or auxiliary lines extending therefrom, are secured to anchor posts or stakes and are provided with springs or other resilient means enabling the body of the line to move resiliently when the first end of the line is drawn by a hunter or person in a blind or other location. One or more corner posts or stakes are used to guide the line at each point where a change in the direction of the line occurs. The present system may accommodate a large number of changes of direction and/or decoys installed upon the line, due to the low friction pulley action provided at each post or stake.