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  1. By: Schulenberg, T S - Remsen, J. V.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 102
    Date: 1982
    Page Range: 52--57
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Lowther, Peter E - Fraga, Rosendo M - Schulenberg, T S - Lanyon, S M
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 124
    Date: 2004
    Page Range: 171--177
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Schulenberg, T S - Plenge, M A
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 100
    Date: 1980
    Page Range: 147--149
    Publication Info: London, British Ornithologists' Club, 1893-