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  1. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 97
    Issue: 2
    Date: 1983
    Page Range: 237--238
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 4
    Date: 1975
    Page Range: 461--462
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 1
    Date: 1992
    Page Range: 163--163
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 102
    Issue: 4
    Date: 1988
    Page Range: 743--744
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Dixon-MacCallum, Graham P. - Bell, Katie A. H. - Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 131
    Issue: 1
    Date: 2017-07-14
    Page Range: 37--45
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Gregory, Patrick T. - Farr, Daniel R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 132
    Issue: 1
    Date: 2018-08-28
    Page Range: 36--42
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 1
    Date: 1992
    Page Range: 163--164
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 1
    Date: 1977
    Page Range: 19--27
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Lacey, Howard George, - Shewchuk, Christopher - Gregory, Patrick T. - Sarell, Michael J. - Gregory, Linda A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 110
    Issue: 4
    Date: 1996
    Page Range: 620--625
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: McIntosh, A.G. Duncan - Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 90
    Issue: 1
    Date: 1976
    Page Range: 73--73
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  11. By: Gregory, Patrick T. - Gregory, Jacqueline
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 132--133
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  12. By: Wilkinson, Shannon F. - Gregory, Patrick T. - Engelstoft, Christian - Nelson, Kari J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 121
    Issue: 2
    Date: 2007-04-01
    Page Range: 142--149
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  13. By: Gregory, Patrick T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 131--132
    Publication Info: Ottawa Ottawa Field-Naturalists' Club