Version 5.5 is now available with over 500 extra photos and 12 additional species.This is the best DVD for North American Birds. Thayer Birding Software's Gold Edition DVD version 5.5, released on February 2012, is the ultimate birding resource.Photographs from world-class nature photographers along with songs, sonograms, action videos and detailed range maps, make this DVD a must-have for your birding library.This easy to use program offers a wealth of information on 970 species of birds. Includes all the features of Thayer's Birds of North America version 4.5 PLUS:Gold Edition Exclusives:Import YOUR OWN Photos, Songs and Videos:Your photos, songs and videos now integrate seamlessly, appearing everywhere--In quizzes, the Field Guide pages and even Side-by-side comparisons! Imagine seeing your own photos included on a quiz for local birds, just as if they had been included on the original DVD! Perfect for shutterbugs!You may also import photos, songs and videos from the Internet and songs from other audio CDs.With "My Quizzes" you can quiz Yourself on Anything. Easily create quizzes on Butterflies, Wildflowers or Birds of the World! This incredible new feature offers users the ability to use the DVD as a learning tool for endless subjects!Identify Unknown Birds:Eliminate the guesswork with the Identification Wizard. Enter the bird's colors, size, habitat and location and instantly see a photo gallery of all the birds matching your description.BONUS: The Birder's HandbookA classic 700 page bird reference book is also included in electronic format! Read over 250 essays and find out about the nesting habits, diet and life cycle of each species.System Requirements:Windows 7, Vista and XP;  DVD drive; 6 GB free space on hard drive. Technical support requires Internet access. This program will run on Mac computers running a Windows emulation program.