this post was submitted on 23 Mar 2025
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A few years ago I saw someone just simply checking for a cat head silhouette. Was enough to deter other animals and also worked to recognise if the cat had caught something.
We have a cat flap that detects the RFID chip in her shoulder. It seems to be broken since a few weeks. But our cat (and not the stupid neighbour's cat) can open it anyways with a little prying with her claw. But luckily that doesn't work as well when she has an animal in her mouth. So we will probably leave it broken.
Silhouette sounds like an interesting method, although I've never tried to figure out how to test with and without rat in mouth. Probably would just have to try it in practice.