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  1. By: Dugger, Katie M. (Katie Marie), - Dugger, Bruce D - Fredrickson, Leigh H
    Type: Article
    In: The Wilson bulletin
    Volume: 111
    Issue: 1
    Date: 1999
    Page Range: 1--6
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Fredrickson, Leigh H
    Type: Article
    In: The Wilson bulletin
    Volume: 82
    Issue: 4
    Date: 1970
    Page Range: 445--457
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  3. By: Combs, Daniel L - Fredrickson, Leigh H
    Type: Article
    In: The Wilson bulletin
    Volume: 107
    Issue: 2
    Date: 1995
    Page Range: 359--365
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Fredrickson, Leigh H
    Type: Article
    In: The Wilson bulletin
    Volume: 81
    Issue: 4
    Date: 1969
    Page Range: 450--453
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Fredrickson, Leigh H - Weller, Milton W
    Type: Article
    In: The Wilson bulletin
    Volume: 84
    Issue: 3
    Date: 1972
    Page Range: 309--314
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Brown, Patrick W. - Fredrickson, Leigh H
    Type: Article
    In: The Wilson bulletin
    Volume: 99
    Issue: 1
    Date: 1987
    Page Range: 50--55
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  7. By: Brown, Patrick W. - Fredrickson, Leigh H
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 2
    Date: 1989
    Page Range: 240--247
    Publication Info: Ottawa Ottawa Field-Naturalists' Club