What is hard to quantify is how much is technology and how much is the result of other factors. I have been searching for the link on the WI DNR site, but haven' t found it yet that shows the population density changes over time. I do recall seeing a link a while back that indicated that the population of whitetails in WI is something like 3 times as high as it was in the 1960' s. Of course, that gives one a lot more opportunities to score than before.

I think backing the premise that increased deer density is the largest variable influencing increased hunter success is seen in the gun numbers. In 1966, 25% of hunters harvested a deer. By 2001, the number was 52% and actually got as high as 75% in 2000!