A poultry feeder with beak growth control device is provided. In one embodiment, the feeder includes a feeder pan, a feeder tower, and a beak grooming ring. The grooming ring is removably inserted in the feeder and has an annular shape complementary configured to engage a corresponding shape of the feeder pan. Preferably, the grooming ring has a self-supporting structure that retains its complementary shape to the feeder pan independently of the pan when removed therefrom. The grooming ring is insertable and removable from feeder as a separable unit from the feeder and operable to abrade the beak while the birds feed, thereby controlling its growth and length.