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By: Lanctot, Richard B - Blanco, Daniel E. - Dias, Rafael A - Isacch, Juan P - Gill, Verena A - Almeida, Juliana B - Delhey, J. Kaspar V. - Petracci, Pablo F. - Bencke, Glayson Ariel. - Balbueno, Rodrigo AType: ArticleIn: The Wilson bulletinVolume: 114Series:Issue: 1Date: 2002Page Range: 44--72Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: