A waterfowl decoy apparatus is disclosed for attracting a waterfowl. The waterfowl decoy apparatus comprises a blade having a generally sinusoidal cross-section for defining a first concave portion, a second concave portion and an inflection axis. A dark pigment is on a first side of the blade. A light pigment is on a second side of the blade. A first end of a hanger is secured to an object. A swivel couples a second end of the hanger to a top edge of the blade for rotating the blade relative to the hanger. The flow of air contacts the blade for rotating the blade. The dark pigment and the light pigment create an oscillating image upon rotating of the blade for attracting the waterfowl.
