The American Oystercatcher Working Group seeks to develop, support, and implement rangewide research and management efforts that promote the conservation of American Oystercatchers and their habitats.  Read the most recent reports that summarize population monitoring data for American Oystercatchers breeding in Massachusetts:

Summary of 2011 Massachusetts American Oystercatcher Census  pdf format of 2011 Massachusetts American Oystercatcher Census

Summary of 2010 Massachusetts American Oystercatcher Census  pdf format of 2010 Massachusetts American Oystercatcher Census

Summary of 2009 Massachusetts American Oystercatcher Census  pdf format of 2009 Massachusetts American Oystercatcher Census