Faced with the prospect of an easy meal, some California black bears are capable of remarkable feats. The voracious omnivores can pop windows out of cars, break down doors and even, apparently, memorize garbage collection days. "They want to consume as many calories as they can with the least amount of effort," said Lorna Bernard, a spokeswoman for the state Department of Fish and Game. "When they stumble upon somebody's cabin that has a barbecue out, to a bear that's a gold mine."