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  1. By: Peterson, Randolph L. - Nagorsen, David W. - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, c1975
    Holding Institution: Royal Ontario Museum
  2. By: Nagorsen, David W. - Peterson, Randolph L. - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, c1975
    Holding Institution: Royal Ontario Museum
  3. By: Nagorsen, David W. - Peterson, Randolph L. - Royal Ontario Museum.
    Publication info: Toronto, Royal Ontario Museum, 1980
    Holding Institution: Royal Ontario Museum
  1. By: Nagorsen, David W. - Peterson, Randolph L.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 1
    Date: 1977
    Page Range: 98--100
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 94
    Issue: 1
    Date: 1980
    Page Range: 83--85
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Nagorsen, David W. - Jones, Donald M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 1
    Date: 1981
    Page Range: 93--94
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Nagorsen, David W. - Nash, Stephen V
    Type: Article
    In: The Canadian field-naturalist
    Volume: 98
    Issue: 4
    Date: 1984
    Page Range: 500--502
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Johnson, Donald R - Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 4
    Date: 1990
    Page Range: 583--584
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Nagorsen, David W. - Campbell, R. Wayne - Giannico , Guillermo R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 55--59
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Nagorsen, David W. - Keddie, Grant - Hebda, Richard J
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 1
    Date: 1995
    Page Range: 11--18
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Bertram, Douglas - Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 1
    Date: 1995
    Page Range: 6--10
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Baird, Robin William - Nelson, Dawn - Lien, Jon - Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 110
    Issue: 3
    Date: 1996
    Page Range: 525--532
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 111
    Issue: 3
    Date: 1997
    Page Range: 524--524
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  11. By: Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 1
    Date: 1997
    Page Range: 82--85
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  12. By: Nagorsen, David W. - Scudder, G. G. E. (Geoffrey G. E.) - Huggard, David J. - Stewart, Heather - Panter, Nick
    Type: Article
    In: The Canadian field-naturalist
    Volume: 115
    Issue: 1
    Date: 2001
    Page Range: 1--8
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  13. By: Jung, Thomas S. - Slough, Brian G. - Nagorsen, David W. - Dewey, Tanya A. - Powell, Todd
    Type: Article
    In: The Canadian field-naturalist
    Volume: 120
    Issue: 1
    Date: 2006-01-01
    Page Range: 39--42
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  14. By: Jung, Thomas S. - Runck, Amy M - Nagorsen, David W. - Slough, Brian G. - Powell, Todd
    Type: Article
    In: The Canadian field-naturalist
    Volume: 120
    Issue: 3
    Date: 2006-07-01
    Page Range: 331--334
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  15. By: Jung, Thomas S. - Pretzlaw, Troy. - Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 121
    Issue: 1
    Date: 2007-01-01
    Page Range: 94--95
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  16. By: Jung, Thomas S. - Nagorsen, David W. - Randall, Lea A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 123
    Issue: 2
    Date: 2009-04-01
    Page Range: 171--172
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  17. By: Silver, Rod S. - Dawe, Neil K. - Starzomski, Brian M. - Parker, Katherine L. - Nagorsen, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 124
    Issue: 4
    Date: 2010-10-01
    Page Range: 367--383
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  18. By: Jung, Thomas S. - Slough, Brian G. - Nagorsen, David W. - Kukka, Piia M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 128
    Issue: 3
    Date: 2014-10-16
    Page Range: 265--268
    Publication Info: Ottawa Ottawa Field-Naturalists' Club