US Patent 7194977 Bird feeding apparatus

Bird feeding apparatus comprising a main body that provides access to bird food and a base member having a plurality of shedding faces which are inclined so that a bed of food particles in the main body settling under gravity is shed towards feeding ports located proximal the periphery of the base; where each shedding face has at least two mutually inclined substantially flat surfaces that together form a valley the floor of which descends as it approaches the periphery of the base.