SMITH-FGSmithsonian Field Guide  Birds of North America

More than 730 species of birds across North America. 2,000 stunning color photographs showing important field marks, regional population differences, life stages and behaviours,700-plus detailed and up-to-date color range maps.

A detailed glossary of terms, species checklist, and quick index Bonus... A DVD of birdsongs for 138 major species (587 vocalizations in all for 5½ hours of play); each  MP3 file is embedded with an image of the bird, to view on both computers and MP3 players (IPODs).