I love the Merlin ID app by Cornell Lab.
Everyone can make out a mallard or spot a majestic eagle, but this chirp identifier lets you identify all the smaller or lesser know creatures perched in your backyard foliage.
Just tap on the green arrow, and a recording starts. Every time a song is picked up, the bird ID flashes below.
Then you can replay the recordings to become familiar with all the different calls.
Another free educational service brought to you through new technology and the drive for data.
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