Ruddy Duck

Cornell’s All About Birds

Lake Elkhorn
March 31, 2012
Photo by Howard Patterson

Centennial Park
April 19, 2018
Photo by Howard Patterson

Centennial Park
November 11, 2006
Photos by June Tveekrem

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.