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  1. By: Lloyd, John. - Rimmer, Christopher
    Type: Article
    In: Biodiversity data journal
    Volume: 5
    Date: 2017-11-22
    Page Range: 1--11
    Publication Info: Sofia Pensoft Publishers [2013]-
    Subjects: Bicknell's Thrush  Birds  Catharus bicknelli  Elfin-woods Warbler  point counts  Puerto Rico  Setophaga angelae