. The Canadian field-naturalist. 2004 Priestley: Barred Owl in Alberta 22]. Barred Owl Occurrences 1975-1999 Figure 3. Barred Owl distribution from 1975 through 1999 (map courtesy of Alberta Conservation Association/ Alberta Sustainable Resource Development).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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