Thanks for the suggestions and feedback on your firmware updating experiences. I haven't compared the firmware versions of my last batch, but I've compared others before and noticed that they sometimes came with different versions. That could very well be the reason why just the one has a mic with lower sound volume even though the filter is turned off.
I've been able to spot rats, cats, racoons, opossums, squirrels, chicken hawks (eyeballing my koi), etc. on my cams over the years so spotting wildlife is definitely another potential use of the cams. The rats and squirrels like to try and get food out the my koi feeder so I've had to use metal feeders and also put metal hardware cloth on the bottoms to help keep them from being able to mess with them. Knock on wood, ever since I got rid of my cumquat/tangerine tree I haven't noticed anymore rats around or show up on cameras since. The squirrels actually ate or took a bite and just drop them on the ground the majority of the time before I could pick and eat the ripe fruit myself anyway.
I'm currently requesting a price from Andy and may actually order one of the 2MP Starlight varifocal lens cams for use with ALPR duties. I have a couple of 4 and 6 MP cams with 6mm lenses, but they have to be fairly close to vehicles in order to be able to clearly read tags so hopefully a varifocal Starlight will help. I've found that the motorcycles are the most difficult plates to capture due to them being smaller in size and also because the riders tend to travel faster too,