The Pennington Metal Upside Down Seed Cake Bird Feeder is a unique bird feeder specially made to feed clinging birds that eat upside down. It serves as a feeder for birds like nuthatches, woodpeckers, chickadees, and titmice. It also scares away nuisance birds and prevents them from eating the feed. This feeder includes a lifting lid and is easy to fill. Its gravity design gradually allows a second cake to drop down into the feeding area as the first cake is finished. Holds up to two large suet or seed cakes.