Your purchases there support content development on The Virtual Birder. North American Bird CD-ROMs Birding By Ear CDs These CDs stand out from most other products with their educational approach. Birds are presented in groups based on similarity of song. Bird vocalizations are compared and contrasted and tips are given for distinguishing between similarly sounding species.
Booklets contain phonetic indices which are useful for identifying sounds.
Audio Field Guide CDs Audio Field Guides provide a comprehensive collection of bird song presented in the same order as their companion field guide. A narrator gives the species name and then songs and calls follow. Accompanying booklets vary on the amount of descriptive information they provide for each species. Individual tracks for most species make finding and replaying species easy. Individual tracks for most species make finding and replaying species easy.