Common Goldeneye Bucephala clangula
31 March 1967 Vischer Ferry, New York
female 17 December 2008 Arvada, Colorado
22 February 2009 Arvada, Colorado
27 February 2009 Arvada, Colorado
17 March 2010 Arvada, Colorado
7 January 2012 Golden, Colorado
16 January 2012 Arvada, Colorado
female
male 2 April 2016 Wheat Ridge, Colorado
21 January 2017 Wheat Ridge, Colorado