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  1. By: MacKenzie, H. N.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 83
    Issue: 1
    Date: 1969
    Page Range: 78--80
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: MacKenzie, H. N.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 82
    Issue: 1
    Date: 1968
    Page Range: 51--51
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: MacKenzie, H. N. - Greenwood, Edward Warren
    Type: Article
    In: The Canadian field-naturalist
    Volume: 83
    Issue: 1
    Date: 1969
    Page Range: 55--56
    Publication Info: Ottawa Ottawa Field-Naturalists' Club