" American farmers were still trying to figure out how to make good wine from native American grapes. The difficulty had to do with the genetics of the grape itself. While the European V. vinifera enjoyed almost ten thousand years of selection by humans, who chose larger, tastier fruit and favored hermaphrodite vines over dioecious vines, very little human selection seems to have taken place in North America. Instead, the birds did it. They selectively picked blue-skinned varieties, an unattractive color for wine, because they could see them better—and they chose small fruit over large because they could eat it in one bite. "

― Amy Stewart , The Drunken Botanist: The Plants That Create the World's Great Drinks