A birdfeeder, a security camera, and this python script: https://github.com/ctrager/opencv_py/blob/master/red_yellow_...

I want to record visits to my birdfeeder but not all the visits. 99% of the visitors are sparrows, which, no offense to any sparrows reading this, are dull colored. I want to capture the cardinals, bright red birds. The python script monitors the video stream and starts recording when the image gets suddenly redder. But it's configurable to also react to blue (bluejays) and yellow (goldfinches).

This is barely baked, just a script.

A video: https://drive.google.com/file/d/1vUjYrTwJkPVUlWIYQ6_qA9t1tqi...