These parrots once roamed the American Southwest. Scientists are trying to help them / Birds have accents, too: Researchers find cultural change in the dialects of parrots over 22-year period / Can Parrots Converse? Polly Says That's the Wrong Question. / Parrots Use Their Beaks to Swing Like Monkeys / Foul-mouthed parrots are unlikely stars at a British zoo / Study is the first to document dialect differences in a parrot across its European range