Abstract: A bird feeder which includes a cylindrically shaped outer shell. The shell is free to move about a structure having first and second generally drum-like faces. The first drum-like face defines a feeding trough and access to a storage chamber. Attached to the second drum-like face is means for mounting the feeder so that both faces are disposed generally vertically. Whereas birds can feed while resting on perches which protrude outwardly from the first drum-like face, non-flying predatory animals such as squirrels must approach the feeder along its outer periphery, traversing the shell in the process. As the predator tries to climb onto the feeder, the outer shell spins; and the animal loses both its footing and any chance of using the feeder. The storage chamber can be easily filled without removing the bird feeder from its mounting. A funnel connects the storage chamber with the feeding trough to insure a smooth flow of bird feed from the chamber to the trough.