Birds have accents, too: Researchers find cultural change in the dialects of parrots over 22-year period

While distinct languages and dialects are common to human societies, most people are unaware that other species may similarly have culturally significant dialects. New research conducted by a team of researchers from the University of Pittsburgh at Johnstown and New Mexico State University has revealed the dialects of the yellow-naped amazon parrot in its natural range in Costa Rica over a 22-year span.