An agricultural combine (20) with a convergence panel construction (100 / 200 / 300) that permits a user to adjust or controllably vary to some extent, depending upon whether windrowing or swath spreading of crop residue is desired, lateral flow concentration or dispersion of the crop residue flow as the crop residue flow is directed towards the rear of the combine (20) and into a distribution chamber (60) for discharge therefrom either through a rear opening (54) for windrowing or into a chopper/spreader (26) for swath spreading, including adjustable convergence panels (101A, 101 B / 301A, 301 B) hingedly attached to the sides (102A, 102B) of the distribution chamber (60) for rotation about the hinged attachments and an adjustment mechanism (118), such as a linkage mechanism (122 / 222) connected to the convergence panels (101A, 101B / 301A, 301B, for adjustably moving such convergence panels about the hinged attachments and a controller mechanism (78) operable by a user to effect the movement of such right and left convergence panels (101A, 101B / 301A, 301B through operation of such adjustment mechanism (118).
