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  1. By: Fitzpatrick, Sheila Maureen - Troubridge, Jim - Peterson, Barbara
    Type: Article
    In: Journal of the Entomological Society of British Columbia
    Volume: 88
    Date: 1991
    Page Range: 39--45
    Publication Info: [Victoria, etc.] Entomological Society of British Columbia
  2. By: Peterson, Barbara - Gauthier, Gilles
    Type: Article
    In: The Wilson bulletin
    Volume: 97
    Issue: 3
    Date: 1985
    Page Range: 319--331
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-