I have seen before where towns do this because the herd is to big, I used to hunt a park in MI on a draw basis to thin the herd where numbers were out of control. The buckshot thing is weird, I would rather a slug, I think making them hunt from an elevated stand is good in city limits. I do see a problem with “A shotgun will knock ’em down,”. I have shot deer with a bow and they have dropped on the spot, they also run, lucky I have never had one go more then 40 yds or so. I have also seen people shoot deer with a well placed slug and have the deer run a good ways.