A common construction of a header for an agricultural implement includes either a cutter bar with a pickup reel and/or a rotating tine pickup belt for feeding material to an auger which collects the material into a rear discharge of the header. In certain types of crops, material can be thrown upward onto the frame of the header above the rear discharge opening. The material can then obstruct the view of the operator of the implement, or become entangled in the implement, or be wasted by being thrown onto the ground instead of being collected in the usual manner of the implement.