Abstract: An agricultural implement adapted to be passed over and along windrows of hay, grain, and other crop vegetation lying cut in a field, for fluffing such windrows without turning them upside down or displacing them in the field, has a rotary pick-up device with preferably spring-loaded pick-up teeth that progressively withdraw from the picked-up mass of material as such material is carried backwardly, and a discharge arrangement that minimizes hang-up of the discharging material. Provision is preferably made for driving the pick-up device at infinitely variable speeds independently of the speed of travel of the implement along the lengths of the windrows, and for adjustably determining the width and height of the fluffed windrows.