Software
Birdcountr
August 20, 2010
birdJam HeadsUp Warblers & HeadsUp Sparrows
May 11, 2011
BirdsEye
October 18, 2011
iBird Explorer
December 16, 2009
Peterson Birds of North America App
January 19, 2012
The Sibley eGuide to the Birds of North America
April 25, 2010
