I have a BirdNET-Pi in my backyard constantly listening to and identifying bird songs. It's pretty neat. They also sell a purpose built device if you don't want

I have a BirdNET-Pi in my backyard constantly listening to and identifying bird songs. It's pretty neat. They also sell a purpose built device if you don't want to build a pi. The data is sent to https://app.birdweather.com/ https://app.birdweather.com/ where I'm assuming bird scientists are doing something with it.