A feeder assembly includes an elongated pan (104) in either a two intersecting circle or oval shape. The feeder assembly includes first and second fill ports for receiving feed from a feed supply conduit and for providing feed to the pan. Each fill port provides feed to a separate portion of the pan. The fill ports are defined through an outer grill which is operatively associated with the pan. The outer grill has an elongated rim which is shaped to match the pan. The outer grill defines apertures therethrough through which birds can eat the feed presented on the pan. First and second inner grills are provided within the outer grill which can be rotated to partially mask the apertures to effectively change the width of the apertures. The inner grills are connected such that rotation of one inner grill causes rotation of the other inner grill in the opposite direction.
