Squirrels often help themselves to the contents of bird feeders, often not merely feeding, but carrying away the food to their hoard. There are various anti-squirrel devices available to thwart attempts by squirrels to raid bird feeders. Several manufacturers produce feeders with perches that collapse under the weight of anything heavier than a bird, or that use battery power to shock an intruder lightly or spin the perching area to fling it off. Caged feeders are often designed so that squirrels cannot reach the seed inside, but birds can easily fly through the cage's holes. Another way to keeping squirrels from getting into the bird feeder is to add crushed red pepper flakes to the seed; birds lack the receptor to which capsaicin binds, so it does not function as an irritant for birds.
The placement of a bird feeder can also prevent squirrels from accessing the seed. In addition, baffles can be used that prevent squirrels from gaining their footing above feeders. Below feeders, baffles can prevent squirrels from climbing any further, however squirrels are very agile and acrobatic and often find a way to overcome devices of any nature.[4]
Sometimes the placement of a separate and isolated squirrel feeder is the best way to keep squirrels away from bird feeders. Squirrel feeders typically offer a whole dried cob of corn, often at the top of a rotating stick to add a bit of amusement to their antics.
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