Audubon Birds: A Field Guide to North American Birds
Usually sells for $10, free today only in the Amazon Android App store. Likely geo limited to US or N. Amer countries.
Identify North American birds with quality photos, bird songs and calls, range maps, descriptions, and more. Audubon Birds is your essential guide to identifying common and rare species of birds in your backyard or in the field. Great for seasoned and amateur bird watchers, Audubon Guides for Android places nature at your fingertips--no bulky books.
Note: Audubon Birds has 529 MB of additional content available as an optional free download. Because of the large file size, if you choose to download the content we recommend using a strong Wi-Fi connection--the bulk download is not a requirement for using the app. This application is not optimized for large tablets.