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  1. By: Middleton, Alex L. A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 96
    Issue: 2
    Date: 1982
    Page Range: 202--204
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Middleton, Alex L. A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 4
    Date: 1986
    Page Range: 545--549
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Middleton, Alex L. A. - Nancekivell, Graham
    Type: Article
    In: The Canadian field-naturalist
    Volume: 113
    Issue: 2
    Date: 1999
    Page Range: 278--278
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Middleton, Alex L. A. - Prescott, David R. C. (David Robert Charles)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 1
    Date: 1989
    Page Range: 61--64
    Publication Info: Ottawa Ottawa Field-Naturalists' Club