A free bird-identification cell phone app is available from the Cornell Lab of Ornithology. It has ID capabilities for North America, Mexico, Central America, and Western Europe. It has a photo-ID feature.
It's called Merlin. Download it from the Cornell Web page at
Merlin runs on any iPhone, iPad, and iPod touch with iOS 8 or newer and 250-400 MB of free space. Download from Cornell or open the App Store from your device, then search for "Merlin Bird ID."
Merlin runs on Android handheld devices with OS 4 or higher and 250-400 MB of free space on the phone. To download, open Google Play from your device. Then search for "Merlin Bird ID".
I have four bird-ID apps on my iPhone, all of them purchased. Merlin is far, far better than any of them.
Merlin can work as a coach for beginning and intermediate birdwatchers. It asks you for information that helps with ID. Tell Merlin date and location of your observation. Add detail on color, size, and behavior. Merlin will give you a short list of possible species.
Click "This is my bird" when you have a positive ID. Merlin saves the information to help improve future performance.