A harvester assembly (200) is described that comprises a feeder assembly (210), a bottom floor assembly (220), and a crop collection channel positioned therebetween. The rear portion of the bottom floor assembly is capable of variable movement in order to facilitate the passage of crop material through the crop collection channel with a reduced risk of clogging or plugging of the channel. The harvester assembly can be integrated into an agricultural harvester such as a baler or combine.
