Free - available for iOS or Android devices
Bird ID Wizard—Step-by-step
Answer three simple questions about a bird you are trying to identify and Merlin will come up with a list of possible matches. Merlin offers quick identification help for all levels of bird watchers to learn about the birds across the Americas, Europe, Asia, Africa and Oceania. Learn about all the regions Merlin covers.
Snap a photo of a bird, or pull one in from your camera roll, and Photo ID will offer a short list of possible matches. Photo ID works completely offline, so you can identify birds in the photos you take when you are far from cell service.