Thanks to Peter Wenker for sending along these pictures of a bird-feeder thief. Though I don't have any details about where or when they were taken, there's no doubt in my mind that they're real, since bears are notorious bird-feeder thieves. The New Hampshire Fish and Game Department even has instructions on their website
titled "Don't Let your Bird Feeder Become a Bear Feeder!" Their recommendations include: "Stop all bird feeding by April 1, or as soon as snow melts;" and, "Clean up any spilled birdseed and dispose of it in the trash."