National Audubon's Guide to North American Birds
Complete with vivid photos, colorful illustrations, taxonomy, distribution maps, and multiple examples of songs and calls for each species, the new online Audubon guide is a great place to find essential information about specific bird species. It's also available in Spanish!
Cornell Lab of Ornithology's "All About Birds"
Cornell's Lab of Ornithology is one of the world leaders in the study of birds, so it's no surprise that their online field guide for birds from around the world is many peoples go-to resource.
Backyard Bird ID - National Geographic
This online guide has you answer four questions to narrow down bird ID possibilities. It's not foolproof, but it's a great place to start!
The Feather Atlas - U.S. Fish and Wildlife Service
This website promotes feather identification, research, and appreciation by providing high-resolution scans of the flight feathers of North American birds.
Kaufman Field Guide to Birds of North America
This compact and portable guide offers photos of many species, which can aid in identification in the field.
Peterson Field Guide to Birds of North America
Roger Tory Peterson's guide, first introduced in 1934, is widely considered to be the first North American birding field guide (don't worry, it's been updated since then!)
National Geographic Field Guide to Birds of North America
This compact guide is a favorite companion in the field, as it's noticeably smaller and lighter-weight than other guides.
For more information about specialized bird guides, visit Audubon.org.
These cutting edge resources give you all of the information you need, at your fingertips on your mobile device.
Merlin Bird ID by the Cornell Lab of Ornithology
North American Bird Calls & Songs (Online Database)
If you would like to help Audubon scientists and researchers collect data on hummingbirds we also recommend the Audubon Hummingbirds at Home app.