I live in a small city on a double lot that connects to a heavily traveled Avenue on the back side and a much less traveled city street on our frontage side. When we first moved in I watched small herds of deer grazing through our back yard every morning and was astonished that they would come right into the city lol. They were fun to watch at first, but it didn't take long for them to become unwanted pests. They nibbled along taking the tender shoots and best parts of the different plants that they found as they grazed by. Now I realized why all of the former owners fruit trees had died and were just dead sticks waiting for me to cut them down. Forget about flowers or any vegetable reaching maturity, they waited until just the right moment and poof, it was gone.
So I began a campaign to get rid of them. First was the store bought powders and sprays, some of which smelled really bad. These worked for a couple of days but you had to keep reapplying it. After awhile the deer started getting used to it and I would walk out to find the top of some plant missing. My wife's beautician is a family friend and I asked her save up some human hair for me. I placed some of this hair in small cloth bags or wrapped it in a rag and placed them strategically around my yard, then I just spread the leftover hair out on the ground in the most important areas. I had also started collected small bottles of urine which I dribbled every few feet along my property line every other day. This worked a lot better than the store bought stuff and it cost me nothing but a little effort.
The last straw for the deer in my neighborhood was when the lady that lived across the road from me build a fence around her yard so that her dogs could run free. It turned out that this was the path that the deer had been using and the fence plus two large dogs made their efforts no longer worth the risks. The fence remains but the dogs and the former owner have moved away, but apparently the deer found, or made a new trail and are off annoying someone else now. ;)
I'm glad they haven't been too large of a burden on us yet. We keep our garden up on higher ground and they haven't bothered them but the one time. If I saw that many on our property I would be up in my treestand with a bow every morning this fall.