. The Canadian field-naturalist. 1985 Dunn, HussELL AND SiDERius: The GREAT Blue HERON IN Ontario 65. EASTERN CENSUS AREA Figure 2. Distribution of active Great Blue Heron colonies in 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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