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  1. By: Lotz, Chris
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 19
    Issue: 1
    Date: 2012-03
    Page Range: 83--93
    Publication Info: Cambridge, African Bird Club, 1994-
  2. By: Lotz, Chris
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 22
    Issue: 1
    Date: 2015-03
    Page Range: 92--96
    Publication Info: Cambridge, African Bird Club, 1994-