Twigle Birds is a free app for birders. It claims to contain a complete field guide to birds in North America and Europe, and has photos and information built into the app so you don't need a data ...
If you’ve ever heard a bird sing and wondered how you could possibly figure out what type of bird it could be without laboriously searching through recordings, The Cornell Lab of Ornithology now has ...
Smithsonian Institution, Center for Folklife and Cultural Heritage, Ralph Rinzler Folklife Archives and Collections, 600 Maryland Ave., S.W., Suite 2001, Washington ...