A combine harvester, comprising: a housing including a rear hood and opposite side walls which define an interior; a blower disposed in the interior of the housing, the blower configured to generate an air stream in a substantially rearward direction; a cleaning system disposed in the interior at a location rearward from the blower, the cleaning system separating residue from a crop material such that the residue is transported via the air stream rearwardly to be discharged from the housing; a chopper rotor assembly (60, 208) disposed within the interior at a location below the rear hood of the housing, the chopper rotor assembly (60, 208) comprising a chopper rotor (74, 236) mounted about a hub for rotation about an axis defined by the hub and a plurality of blades coupled to the hub of the chopper rotor (74, 236) for chopping the residue as it is received via the air stream; and a chopper housing (72, 232) disposed within the interior and defining an inlet opening of the chopper rotor assembly (60, 208) for receiving the residue being transported via the air stream from the cleaning system, the chopper housing (72, 232) further including an outlet spaced rearward from the chopper rotor (74, 236) for discharge of the chopped residue from the interior of the housing; wherein the air stream generated by the blower flows out of the interior via at least a first flow path and a second flow path, the first flow path being defined through the chopper rotor (74, 236) such that a first portion of the air stream flows via the first flow path through the chopper rotor (74, 236) without being substantially redirected by the plurality of blades of the chopper rotor (74, 236) as the first portion of the air stream flows in the rearward direction; characterized in that the second flow path is defined by a space between the rear hood and the chopper rotor (74, 236) such that a second portion of the air stream flows via the second flow path through the space and above the chopper rotor (74, 236), that a residue deflector is pivotably coupled to the side walls of the housing or the chopper housing (72, 202) at a location rearward of the rear hood and above the chopper rotor (74, 236), where the residue deflector is pivotable between at least a first position and a second position, and that the residue deflector comprises a rod pivotably coupled to the side walls of the combine and a plurality of tines depending from the rod and into the space defined between the rear hood and the chopper rotor (74, 236), the plurality of tines being spaced from one another along a width of the residue deflector to allow the second portion of the air stream to flow via the second flow path between the plurality of tines. a housing including a rear hood and opposite side walls which define an interior; a blower disposed in the interior of the housing, the blower configured to generate an air stream in a substantially rearward direction; a cleaning system disposed in the interior at a location rearward from the blower, the cleaning system separating residue from a crop material such that the residue is transported via the air stream rearwardly to be discharged from the housing; a chopper rotor assembly (60, 208) disposed within the interior at a location below the rear hood of the housing, the chopper rotor assembly (60, 208) comprising a chopper rotor (74, 236) mounted about a hub for rotation about an axis defined by the hub and a plurality of blades coupled to the hub of the chopper rotor (74, 236) for chopping the residue as it is received via the air stream; and a chopper housing (72, 232) disposed within the interior and defining an inlet opening of the chopper rotor assembly (60, 208) for receiving the residue being transported via the air stream from the cleaning system, the chopper housing (72, 232) further including an outlet spaced rearward from the chopper rotor (74, 236) for discharge of the chopped residue from the interior of the housing; wherein the air stream generated by the blower flows out of the interior via at least a first flow path and a second flow path, the first flow path being defined through the chopper rotor (74, 236) such that a first portion of the air stream flows via the first flow path through the chopper rotor (74, 236) without being substantially redirected by the plurality of blades of the chopper rotor (74, 236) as the first portion of the air stream flows in the rearward direction; characterized in that the second flow path is defined by a space between the rear hood and the chopper rotor (74, 236) such that a second portion of the air stream flows via the second flow path through the space and above the chopper rotor (74, 236), that a residue deflector is pivotably coupled to the side walls of the housing or the chopper housing (72, 202) at a location rearward of the rear hood and above the chopper rotor (74, 236), where the residue deflector is pivotable between at least a first position and a second position, and that the residue deflector comprises a rod pivotably coupled to the side walls of the combine and a plurality of tines depending from the rod and into the space defined between the rear hood and the chopper rotor (74, 236), the plurality of tines being spaced from one another along a width of the residue deflector to allow the second portion of the air stream to flow via the second flow path between the plurality of tines.