The Birder's Diary Field App companion to your Birder's Diary PC program (www.BirdersDiary.com). Record sightings and various information while in the field for Birds (from any location in the World), Butterflies, Dragonflies, Mammals, Plants, Reptiles, etc. Easily and quickly record sightings in the field: one-handed use, quick, user-adjustable font-size, multiple checklists (birds, plants, mammals, butterflies, etc) on concurrently available Tabs; move from a Bird checklist to a Butterfly checklist with the swipe of your thumb. Clean and fast; simple and intuitive. Download Checklists for Bird locations anywhere in the World ahead of your bird outing without internet connectivity. Do the same for multiple different Orders of Animal and Plant kingdoms. No typing required to record sightings; just tap with your thumb. Left and right-handed configuration. No need for reading glasses in the field for those that don't want another thing hanging around your neck (e.g. binoculars, camera, etc.). Birder's Diary has been in business for 24 YEARS! Longer than anyone else in the business!