Well take it from me that I would use the wildview or stealth cams with 3 - 5 megs and a 12V port for the price like $50 to $120, and include 2 Very important items, Like a Good strong battery that will take the cold as well as the heat and has a warranty, it's called a odyssey PC625 12V battery with 16Ah of battery life and a 4 year warranty good at -40c to 102c. then if you add a cheap but still very good product called a 5 watt solar panel I think the guy I bought it from was MKUTHK1 on ebay this guy has it down pat when it comes to solar panels something about a blocking module that keeps the solar panel from draining the power at night, it comes with a 20ty year warranty best of all it's just plug and play and as he says walk away with that large SD card doing it's job.
I take about 300 pictures a week on burst mode and my batteries stay fully charged, even during the winter months here in Michigan. with the battery and the solar panel I have 30ty days of back up power for cloudy days.
Also I have tried the other cams, but I like the lower cost of the wildviews and I like how easy they are to set-up. Having them running all year is what I enjoy the best.
Hope this helps
Ps I have attached a night picture just for you, this was a 3 meg camera
email me and I will send you a vid from my 5 meg cam. firstname.lastname@example.org