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Thayer Birding Software makes the award winning Birds of North America and Birder's Diary CD-ROMs. Popular bird identification and record keeping software, with newsletters, discussion group, and checklists.

TweetChirp Assistant is the only software designed to play over 700 birdcalls in the field on a Windows CE based personal organizer. . Plays bird calls and records sightings on a Windows CE based personal organizer.

WilderTrack is the most comprehensive birding software available, but it is more than a listing program. If you enjoy watching and studying the natural world, and you need to be able to record, track, and share your outdoor life easily and quickly, WilderTrack is definitely for you.

Bird Recorder 32 and Pocket Bird Recorder programs for keeping track of sightings of birds, butterflies, and dragonflies.