Interesting stuff here.
We live in an area with a big deer population and a lot of hunting pressure. It's general knowledge that if you are not lucky enough to get a deer the first three days of the season your chance of getting your tag filled drop considerably. I don't know whether or not it's a mark of intelligence or conditioning to respond to the sound of gun fire but all the trophy bucks go nocturnal. The younger bucks get careless in their quest for love but those old boys know to make themselves scarce as soon as they hear those first rifle shots and when they go nocturnal, so do the does. It doesn't seem to matter what stage of the rut they are in.
I wonder if your buck's reaction to you isn't conditioning. He knows the area is safe. He knows that you are no threat so he is hanging around there instead of with his head mounted on a wall and his back straps slow cooking in a crock pot.
Deer around us are far more 'visible' when it isn't hunting season than when it is.
As for intelligence? I'm kinda dubious as to whether or not there is an Einstein in the deer world. After all they are related to sheep and the sheep we owned were never the brightest bulbs on the Christmas tree.
I can remember Ted Nugent was once asked the question concerning deer intelligence and he replied that he thought deer (bucks)were capable of three thoughts. What can I eat? Can I out run danger? and What doe can I mate with? Now I'm not saying he is right but I guess what I am saying is only a deer knows what it is thinking if it is thinking at all or running on pure instinct.
I say Enjoy you 8 point buck as long as you can. Just keep in mind that he can lay a world of hurt on you if he decides to.
As for CWD we have it here thanks to a STUPID STUPID STUPID hunting reserve owner who brought contaminated, infected deer into his reserve and infected the wild population. No I don't have too much sympathy for him but loads for the deer population.
Sheep are actually very smart creatures, in some situations/experiments comparable to humans.
http://scribol.com/environment/anim...zing-ways-sheep-are-smarter-than-you-thought/
I love your story @sourland - it's like our wild ducks that return each year, flying in daily to demand food. The females will eat out of my hand without much encouragement. I think they figure they are safe when our property has so many birds on it! Not sure I'd be offering food to a big buck in my neighborhood though but he must be an impressive sight!