American Herring Gull
Lake Elkhorn
March 16, 2015
Photo by Bonnie Ott
On left, with Ring-billed Gulls
Centennial Park
February 29, 2012
Photo by Bonnie Ott
First-year bird
Brighton Dam
February 27, 2011
Photo by Kurt Schwarz
While not necessary for common species, it is good to get into the habit of including photographs and recordings/spectrographs so that you do it for uncommon species that require more documentation.