Audubon Bird Guide is described as 'The Audubon Bird Guide is a free and complete field guide to over 800 species of North American birds, right in your pocket. Built for all experience levels, it will help you identify the birds around you, keep track of the birds you’ve seen, and get outside to find new birds' and is a animal identification app in the travel & location category. There are six alternatives to Audubon Bird Guide for Android, iPhone, iPad and F-Droid. The best Audubon Bird Guide alternative is Merlin Bird ID, which is free. Other great apps like Audubon Bird Guide are whoBIRD, iBird Ultimate Guide to Birds, eBird and Birda - bird ID & Birding.