Squirrel Buster Mini Feeder for Garden Wild Birds Stop squirrels stealing your precious bird food. Squirrel Buster Mini is the compact, high quality bird feeder that is guaranteed 100&37; squirrel proof. Safe & humane, it is fantastically effective at denying squirrels a free meal. When a squirrel climbs onto the feeder, its weight automatically shuts off the feeder ports, preventing access to seed. The patented Seed Tube Ventilation System lets fresh air enter seed ports & opening at the base of the feeder. Hot, humid air escapes at the top, keeping seed cool, fresh & appealing to birds. There is a generous choice of perching & clinging options, making Squirrel Buster Mini popular with a wide range of different garden bird species. Perfectly sized for smaller gardens, Squirrel Buster Mini is ideal to be used with seeds & blends.