My comment about motion false positives is legit though. I have an infrared IR camera pointing at my driveway on the edge of my garage. It goes to a DVR unit for playback....CCTV system, basically. I noticed one day that the interior lights were left on in my 4Runner, my nice car charger was missing, and the doors were unlocked. I hadn't driven the vehicle in 2-3 days, so I got nervous that someone had been rifling through my vehicle because I don't always remember to lock it in my own driveway. (very low crime area)
I jumped on the DVR and went back through days and days of my camera catching cars driving by, moths flying by, and rain drops. That's when I captured my wife being the last person to drive my vehicle. I had wasted a lot of time just doing that exercise, but it was worth it just so I would know how difficult it was to review footage that way. I was only looking at 2-3 days worth, but could only fast forward 4 times the normal recording speed and didn't know what day/time the event occurred I was looking for.
Some of the newer cameras have GOOD recognition software and only trigger motion when a larger group of pixels move together through the view. I can't speak for trail cameras, but just know the technology has come a long way on the wifi variety. Many will cut the motion trigger down to a mere 10-20 second blip so you have less footage, but still capture something.
www.digitalcameraworld.com
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