. The Canadian field-naturalist. PER 2-MINUTE PERIOD T 1 r 13 ,0^ 19 SEPT. 30 31 32 33 TRANSECT ~i— 34 35 r60 -40 -20 y u I I- (/) h _i D Q < Figure 3. Concentrations of Thick-billed Murres observed on transects flown on 13 and 19 September 1980. Left half of upper figure applies to 13 September, right half to 19 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, Ot
. The Canadian field-naturalist. PER 2-MINUTE PERIOD T 1 r 13 ,0^ 19 SEPT. 30 31 32 33 TRANSECT ~i— 34 35 r60 -40 -20 y u I I- (/) h _i D Q < Figure 3. Concentrations of Thick-billed Murres observed on transects flown on 13 and 19 September 1980. Left half of upper figure applies to 13 September, right half to 19 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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