This sounds a bit cruel to me-I almost lost a finger with one of those blasted Slinky's. My Pops gave the squirrels their own feeder attached to the same tree as his bird feeder and for the last 2 yrs this has worked out pretty good for him.And he also keeps a couple ears of corn spiked to a couple tree's. He use to get upset at the squirrels eating all the bird seed.But a very wise 5 yr old told him "Squirrels gotta eat too"--and they probably want their own plate,so Pops followed this advice and now his backyard critters are all well fed and happy
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