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  1. By: Gibson, Derek
    Type: Article
    In: The Avicultural magazine
    Volume: 114
    Issue: 2
    Date: 2008
    Page Range: 84--88
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc
  2. By: Gibson, Derek
    Type: Article
    In: The Avicultural magazine
    Volume: 113
    Issue: 4
    Date: 2007
    Page Range: 166--175
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc
  3. By: Gibson, Derek
    Type: Article
    In: The Avicultural magazine
    Volume: 116
    Issue: 1
    Date: 2010
    Page Range: 30--35
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc
  4. By: Gibson, Derek
    Type: Article
    In: The Avicultural magazine
    Volume: 115
    Issue: 4
    Date: 2009
    Page Range: 185--200
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc