One of the big problems with outdoor security cameras is all the false alerts. A gentle breeze will set off some cameras. You can generally tweak the settings to find something to minimise alerts such as motion zones and sensitivity levels, but it is never perfect.

The one exception I have found is the Netatmo Floodlight Camera, which I still use and is superb at detecting people and only alerting me when it detects them.
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https://mightygadget.co.uk/blurams-outdoor-pro-review-an-affordable-outdoor-camera-with-facial-recognition/