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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Rippon, G
    Type: Article
    In: Ibis
    Volume: 3
    Series: 7
    Issue: 1
    Date: 1897
    Page Range: 1--5
    Publication Info: [London], Published for the British Ornithologists' Union by Academic Press,
  2. By: Rippon, G
    Type: Article
    In: Ibis
    Volume: 2
    Series: 7
    Issue: 3
    Date: 1896
    Page Range: 357--362
    Publication Info: [London], Published for the British Ornithologists' Union by Academic Press,