Agricultural baler, comprising: - a bale chamber having an inlet opening formed therein; - a feeder duct communicating with the bale chamber through the inlet opening for charges of crop material to be transferred from the feeder duct into the bale chamber, wherein the feeder duct has an upper end facing generally upwardly and communicating with the inlet opening in the bale chamber and a lower end facing generally in a forward direction; - a plunger reciprocable within the bale chamber to compress successive charges of crop material received from the feeder duct to form a bale; - feeder means operable within the feeder duct to accumulate a charge of crop material therein and then stuff that accumulated charge into the bale chamber; - a conveying channel communicating with the lower end of the feeder duct for crop material to be conveyed to the feeder duct; - conveying means operable in the conveying channel to convey the crop material along a bottom wall of the conveying channel toward the feeder duct, wherein - the feeder duct has a top wall and a bottom wall extending between the lower end and the upper end of the feeder duct, said top wall providing an upper boundary of the feeder duct and said bottom wall providing a lower boundary of the feeder duct; - at least one part (59, 61) of the bottom wall of the feeder duct is in the form of a door; - the bottom wall of the conveying channel is adapted to be moved away from the conveying means and has a movable edge adjacent a lower end part of the bottom wall of the feeder duct; and - the at least one part of the bottom wall of the feeder duct that is in the form of a door includes said lower end part of the bottom wall of the feeder duct, characterized in that said lower end part of the bottom wall is attached to the movable edge of the bottom wall of the conveying channel. - a bale chamber having an inlet opening formed therein; - a feeder duct communicating with the bale chamber through the inlet opening for charges of crop material to be transferred from the feeder duct into the bale chamber, wherein the feeder duct has an upper end facing generally upwardly and communicating with the inlet opening in the bale chamber and a lower end facing generally in a forward direction; - a plunger reciprocable within the bale chamber to compress successive charges of crop material received from the feeder duct to form a bale; - feeder means operable within the feeder duct to accumulate a charge of crop material therein and then stuff that accumulated charge into the bale chamber; - a conveying channel communicating with the lower end of the feeder duct for crop material to be conveyed to the feeder duct; - conveying means operable in the conveying channel to convey the crop material along a bottom wall of the conveying channel toward the feeder duct, - the feeder duct has a top wall and a bottom wall extending between the lower end and the upper end of the feeder duct, said top wall providing an upper boundary of the feeder duct and said bottom wall providing a lower boundary of the feeder duct; - at least one part (59, 61) of the bottom wall of the feeder duct is in the form of a door; - the bottom wall of the conveying channel is adapted to be moved away from the conveying means and has a movable edge adjacent a lower end part of the bottom wall of the feeder duct; and - the at least one part of the bottom wall of the feeder duct that is in the form of a door includes said lower end part of the bottom wall of the feeder duct,