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  1. By: Lowen, James C - Clay, Robert P - Mazar Barnett, Juan - Madrono N., Alberto. - Mark Pearman - Lanus, Bernabe Lopez - Tobias, Joseph A. - Liley, Durwyn C - Brooks, Thomas (Thomas M.) - Esquivel, Estela Z - Reid, Jane M
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 117
    Date: 1997
    Page Range: 275--293
    Publication Info: London, British Ornithologists' Club, 1893-