Abstract: An automatic bale wagon designed to automatically side load, transport and rear unload multiple, round bales of hay using an electric winch which is wired to the cab of a pickup truck which tows the bale wagon. The round bales of hay typically weigh about 1500 pounds, and are automatically loaded by first towing the bale wagon into pickup position with respect to a selected bale of hay; activating the winch to lift the carriage apparatus and the bale; spilling the bale onto a roller bed positioned in the bale wagon; and automatically sliding the bale to a pre-determined position on the roller bed.