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Published byOwen Dalton Modified over 8 years ago
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Swans of the Sequim-Dungeness Valley Results of surveys by Olympic Peninsula Audubon Society Volunteers, 2011 to 2015
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Swan Surveys by OPAS Volunteers in the Sequim-Dungeness Valley, 2011-2015 Year Number of Surveys Average Number of Swans per Survey (+/- standard error) Average Percent Juvenile Swans per Survey Highest Count of Swans During Season 2011-2012 10563.3 (+/- 2.20) 34.3 %114 2012-2013 9983.3 (+/- 4.14) 24.0 %134 2013-2014 (no March Surveys) 1556.8 (+/- 6.61) 10.9 %100 2014-2015 2161.9 (+/- 6.39) 19.5 %99 Total 2011- 2015 24071.0 (+/- 3.64) 27.3 %134
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