Swans of the Sequim-Dungeness Valley Results of surveys by Olympic Peninsula Audubon Society Volunteers, 2011 to 2015
Swan Surveys by OPAS Volunteers in the Sequim-Dungeness Valley, Year Number of Surveys Average Number of Swans per Survey (+/- standard error) Average Percent Juvenile Swans per Survey Highest Count of Swans During Season (+/- 2.20) 34.3 % (+/- 4.14) 24.0 % (no March Surveys) (+/- 6.61) 10.9 % (+/- 6.39) 19.5 %99 Total (+/- 3.64) 27.3 %134