. The Canadian field-naturalist. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec White Rock - Boundary Bay. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Figure 1. The monthly percentage of the total carcass count found in each region during beached-bird surveys in British Columbia. Sample sizes show numbers of surveys per month. Causes of mortality ease, starvation, internal injuries, and poisoning were Many of the beached-birds were either decom- not apparent from external examination. Surveyors posed or partially eaten by scavengers, making were asked to estimate the state of decompositio
. The Canadian field-naturalist. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec White Rock - Boundary Bay. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Figure 1. The monthly percentage of the total carcass count found in each region during beached-bird surveys in British Columbia. Sample sizes show numbers of surveys per month. Causes of mortality ease, starvation, internal injuries, and poisoning were Many of the beached-birds were either decom- not apparent from external examination. Surveyors posed or partially eaten by scavengers, making were asked to estimate the state of decomposition assessment of the causes of death difficult. and time since death. They estimated that 29% were Furthermore, most causes of mortality, such as dis- fresh (average five days since death), 34 slightly. 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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Keywords: ., bookauthorottawafi, bookcentury1900, bookdecade1910, bookyear1919
