In case you missed it, the free Audubon Bird Guide: North America gives you a mobile field guide that’s updated to the current AOU checklist. The app includes 821 species; advanced gallery view for easy comparison and search; field mark call outs; a “Find Birds with eBird” feature powered by the Cornell Lab of Ornithology; and a social community of birders who observe, identify, and share their observations and photos in the mobile app and online. And did we mention that the app is FREE?
Find out more at the Audubon app web page.