A bulk feeder includes a feeder main body, a track member having a reception region in which multiple components discharged from a component case accommodating the components in a bulk state are received, a supply region to which the components are supplied, and a conveyance path of the components from the reception region to the supply region, a vibration device configured to apply vibration to the track member such that the components on the conveyance path are conveyed, and a conveyance control section configured to execute a feeding operation of conveying the components on the conveyance path in a direction toward the supply region and a returning operation of conveying the components on the conveyance path in a direction toward the reception region.