From oregonlive.com:

What wine is best for black bears?

Just about any, apparently, according the bears themselves. And that's not all; they seem to know as much as the vintners about when the time is ripe!

The Oregon Department of Fish and Wildlife reports damage complaints from black bears are at an all-time high in a four-county region of southwest Oregon, more than doubling the past few years in Jackson, Josephine and Curry counties and quadrupling in Douglas County.

Oregon wineries a big hit with black bears