What the hell? Does the author know what he's talking about? What is a "trail camera"? What is it watching for? Who monitors it? How did these get installed? To whom and how do they transmit images?
This is really weird. OT, I know, but this really caught my attention.
All you eastern trail hikers -- is this true? Do you see a camera every half mile on your hikes? Do you wave or flip them the finger?
http://www.cuddeback.com/indexb.html
There are numerous brands and models sold by Cabela's, Bass Pro, Gander Mountain, Walmart and others.
Four legged animals aren't the only ones that shows up on Trail cams