Tweet, ya'll

From the Raleigh News & Observer:

Humans aren't the only creatures whose regional drawls and twangs give them away. The same thing goes for the songbirds Richard Mooney studies in his Duke University laboratory.

"If you drive around the U.S., you'll hear the same species of songbirds," said Mooney, who has developed a unique way to study how birds learn, and published his results this year in the journal Nature. "But if you listen closely, the songs sung by a swamp sparrow from a population in New York sound different from a swamp sparrow in Pennsylvania. ... It could be likened to a dialect, or an accent."