A crop harvesting header including a pickup reel mounted for rotation about areel axis includes a pluralityof reel bats peripherally disposed and having outwardly extending fingersrotatable about a bat axis. A camtrack surrounding the reel axis includes a cam surface and a guide surface. Alinkage associated with eachreel bat has first and second cam followers that engage the cam surface atfirst and second contact pointsdisplacing the linkage while traversing the cam track, the linkage beingcoupled to cause rotation of the reelbat about the bat axis for changing an angle of attack of the fingers. A guidefollower engages the guidesurface at a third contact point between the first and second contact pointsand is offset to cause the firstand second cam followers and the guide follower to maintain contact with theguide surface whiletraversing the cam track.
