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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Koenig, Paul
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 16
    Issue: 2
    Date: 2009-09
    Page Range: 223--223
    Publication Info: Cambridge, African Bird Club, 1994-
  2. By: Koenig, Paul
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 19
    Issue: 1
    Date: 2012-03
    Page Range: 39--41
    Publication Info: Cambridge, African Bird Club, 1994-