As a food source, squirrels are a locavore's dream: abundant, sustainable, free-range. The ultimate local protein. I mean, if you live in the city, what other form of wild game can you catch in your own backyard? (Other than rats, of course, but I'm saving that one for the apocalypse.) Urban squirrels will eat human food-not to mention what feels like every single tomato from my garden-when they encounter it, but they prefer their natural diet of nuts, seeds, fruits, flowers, shoots, even fungi and insects. These are all abundantly available in Baltimore's parks and even many neighborhoods. Not to mention a much better diet than that consumed by the factory-farmed animals supplying the supermarket meat department.