Has there ever been a more hated bird than the European starling? Let loose in New York City's Central Park by a misguided aristocrat, the starlings were supposed to help curb insect outbreaks and add to the tuneful choir of other songbirds. Rather than staying put, the dark and speckled starlings marched across the continent like a conquering army. In less than sixty years, they were in every state in the contiguous United States and their numbers...