dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Sontag, Walter A., Jr.
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 30
    Date: 1979
    Page Range: 367--379
    Publication Info: Bonn, Das Forschungsinstitut,
  2. By: Sontag, Walter A., Jr.
    Type: Article
    In: The Avicultural magazine
    Volume: 108
    Issue: 4
    Date: 2002
    Page Range: 154--165
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc
  3. By: Sontag, Walter A., Jr.
    Type: Article
    In: The Avicultural magazine
    Volume: 107
    Issue: 1
    Date: 2001
    Page Range: 10--21
    Publication Info: Ascot, Berkshire, etc Avicultural Society, etc