This personal data assistant has the digital birding software developed by the National Geographic Society, replacing burdensome field guide books and notepads with a pocket-sized device to provide birders with a convenient electronic field guide that has a database of 867 North American birds, 1,600 bird images, 650 range maps, and four hours of recorded birdsongs from the renowned Macaulay Library at the Cornell Lab of Ornithology. The software allows you to search by bird name, color, size, or location, and once a species is selected, a detailed image of the bird is displayed and you can access information about each bird's habitat, family, plumage, similar species, foraging, reproduction, and physical features, while audio playback of each species' unique birdsong aids accurate identification in the field. The software promotes quick transition between different files so you can compare and contrast each bird's characteristics. A checklist feature allows you to record bird sightings by location and date, and the software can upload birding checklists from eBird.org, a database for North American birders. Software includes a tutorial, an introduction to birding, and a glossary of ornithological terms. Software and PDA. With Tungsten E2 PDA.