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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Steinheimer, F D
    Type: Article
    In: Forktail
    Volume: 15
    Date: 1999
    Page Range: 100--101
    Publication Info: Oxford,
  2. By: Steinheimer, F D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 122
    Date: 2002
    Page Range: 312--314
    Publication Info: London, British Ornithologists' Club, 1893-