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Its a powerful tool for seeing what might be around when all you can hear is a song somewhere in the trees.One of my suburban wildlife photograpy subjects.

The advantage of building my own tool is that I should also be able to add screenshots of the recorded spectrograms to a notification.but it sends notifications for every detection.95 at AmazonIts a lot easier photographing birds in the winter.

then you need to take a look at another Cornell project.Itll be fascinating to see what else my growing collection of Pi-based sensors finds for me.

Image: Simon BissonDont worry about the microphone hanging out the window.

A search on Amazon showed a USB-based lapel microphone rig that looked promising.I experimented with using it to tweet the tweets.

Image: Simon BissonCould there be another way to spot them? A friend had pointed me at an iOS app from the Cornell Lab of Ornithology.Its been quite surprising seeing how many different birds and small mammals frequent the large tree and the elderberry thicket at the bottom of the garden.

potentially limiting the life of an SD card.The spectrogram of a small flock of sparrows.