Associated Press: The Carolina wren — the state bird of South Carolina — has turned into a Yankee. It`s among more than half of 305 bird species in North America that are spending the winter about 35 miles farther north than they did 40 years ago, according to an Audubon Society study to be released today. Based on Audubon`s calculations, the Carolina wren is now commonly seen in the winter well into New England, as well as its namesake state of South Carolina. Birds of South …