That's a lot of acorns

When spring comes, Black Bears emerge from their dens and devote themselves to one task: eating. Sometimes, the quest for calories brings them too close to people's homes. And if they find food there in say, your garbage can or bird feeder, they're likely to stick around and become a danger.
The Grizzly Bear Outreach Project gives one reason why bears have an appetite for human food. It's much more calorie rich than a normal staple of their diet, acorns. A McDonalds Double Cheeseburger, for example, is equal to 427 acorns.

Photo from the New York Department of Environmental Conservation.