Baird’s Sandpiper

Cornell’s All About Birds

University of Maryland Central Farm
September 12, 2004
Photo by Kurt Schwarz

University of Maryland Central Farm
September 12, 2004
Photo by Ralph Cullison

Alpha Ridge Landfill
April 14, 2006
Photo by Bill Hill

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.