. The Canadian field-naturalist. 1973 KoNDLA, PiNEL, Wallis AND Wershler: Drumheller Area Birds 383. 'js# «•' „ ?; &fi*jir^c ^Mi^j mm Jim& rr^^BitM nm^'^i^mm^* £ ^jja -ij-i. 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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