A poultry feeder that prevents sparrows or light-weighted birds from entering the feeding area is designed. The kernel of the poultry feeder is a feeding module or device that can be inserted into a wide variety of empty containers such as empty 5-gallon paint buckets, plastic containers, or card board boxes. The design may include a DIY (Do-It-Yourself) step for allowing a user to fit a plurality of feeding modules into a user-provided container.