A feeder apparatus including a frame, a tray on the frame, and a hopper on the frame with an interior for holding feed. The hopper may be positioned above the tray and have a dispensing opening in a lower end to dispense feed into the tray. The apparatus may include a feed flow control assembly extending from the tray into the hopper and including a closing member configured for at least partially restricting feed movement through the dispensing opening. The closing member may be mounted on the tray and positioned in the hopper above the opening to define a gap therebetween. The hopper may be mounted on the frame in a manner that permits adjustment of the proximity of the hopper to the tray to adjust a size of the gap between the closing member and the dispensing opening to control feed flow through the gap.