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It’s from Cornell. You can record bird songs on your phone and it will analyze them and tell you what bird it is. Pretty cool. Did a Carolina Wren this morning and it got it right off.
https://birdnet.cornell.edu/
I use the Merlin app, which also uses Cornell data. Love it.
I also have Merlin. It's great! IDed a yellow warbler, a song I didn't recognize, while hiking along the river.