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BIRD IDENTIFICATION MIGRATORY ROUTES AND MAPS BIBLIOGRAPHY SUBSCRIBE TO BPP E-NEWSLETTER FEATURED PHOTOS
Cornell Lab of Ornithology, All About Birds http://www.birds.cornell.edu/AllAboutBirds/
The Birds of North America http://bna.birds.cornell.edu/bna
Cornell Lab of Ornithology http://www.birds.cornell.edu/AllAboutBirds/birding123/identify/
Birding.com http://www.birding.com/bird_identification.asp
PWRC: Tools for Learning about Birds http://www.mbr-pwrc.usgs.gov/bbs/ident.html