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Bird feeders draw and feed squirrels, which in turn end up as roadkill, which in turn end up as food for crows.
Other forms of roadkill further boost crow populations: groundhogs, possums, raccoons, rats, deer and the occasional cat.
Crows can be thought of as a dark harbinger of a growing population of meso-predators and rodents colliding with the top-end predator of modern American wildlife: the automobile.
:: A repost from this blog, circa September 2004 ::
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