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  1. By: Knapton, Richard W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 2
    Date: 1977
    Page Range: 183--183
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Knapton, Richard W - Cartar, Ralph V. (Ralph Victor), - Falls, J Bruce
    Type: Article
    In: The Wilson bulletin
    Volume: 96
    Issue: 1
    Date: 1984
    Page Range: 60--71
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  3. By: Knapton, Richard W - Sanderson, Cathy A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 99
    Issue: 3
    Date: 1985
    Page Range: 375--377
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Knapton, Richard W - Knudsen, Brian
    Type: Article
    In: The Canadian field-naturalist
    Volume: 92
    Issue: 4
    Date: 1978
    Page Range: 403--404
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Knapton, Richard W
    Type: Article
    In: The Wilson bulletin
    Volume: 92
    Issue: 4
    Date: 1980
    Page Range: 458--465
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Knapton, Richard W
    Type: Article
    In: The Wilson bulletin
    Volume: 96
    Issue: 4
    Date: 1984
    Page Range: 594--602
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  7. By: Knapton, Richard W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 3
    Date: 1993
    Page Range: 354--356
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Penny, Cheryl - Knapton, Richard W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 4
    Date: 1977
    Page Range: 393--393
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Richardson, Michael J - Knapton, Richard W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 3
    Date: 1993
    Page Range: 293--304
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Knapton, Richard W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 94
    Issue: 2
    Date: 1980
    Page Range: 190--191
    Publication Info: Ottawa Ottawa Field-Naturalists' Club