Because birds of prey incredible vision is based on the construction of their eyes, that type of vision is impossible to mimic. However, it is interesting how we humans can "train" our brain's vision processors to "see" more like prey animals see. Most prey animals have eyes built with a high density of rods--sensors sensitive to light and dark as well as motion. Our human eyes are more like a predators, with good binocular vision and many moe cones that rods (good color vision and depth perception). Yet we do have more rods out at the periphery of our vision. And with practice we can use that peripheral vision to notice movement very much like prey animals can.

I've often been amazed that if you train your mind to focus on just movement, even the tiniest movement at great distance can catch your attention. I've also noticed this ability take practice. Usually, "newbie" hunters don't have this ability at first, but will learn it with time. And like riding a bike, once you've leaned how to do it, you can basically turn it off and on at will. It may take a few days into a new hunting season to "rehone" the skill, but once learned it is never forgetten.

For an animal that is somewhat "monochrome" it is amazing at how they are almost invisible as long as they don't move.

I can't do that stuff for fear of missing something! I couldn't stand the "not knowing if missed something" while I was reading a paragraph or something!

One of my first questions for the big guy is going to be "how many big bucks did I just barely miss killing that I never knew were there." I imagine it will be a pretty long highlight real.

Actually... If you look at a deer's coloration, they are perfectly camoflaged acording to the principles that I learned in the Marine Corps. We were taught to apply dark camo makeup to the areas of the face that are normally brightest (forehead, top of the nose, cheekbones) and light colored makeup to dark areas (under the chin, under the nose, under eyebrows). Take a look at that deer you've got hanging on the wall and see if he doesn't fit that description to a "T"

I didn't know that BSK but I have noticed in the dark, or shadows, that I can see animals better in my peripheral vision than looking straight at them. Try taking the dog out in the night and watching him wander around. You will be able to see him better if look slightly off to the side than straight on.