On Tue, 25 Aug 2015 15:44:50 -0400, Keyser Söze
wrote:

When you say "deer problems," you mean the problems created by mankind
encroaching on their environment and leaving them little option but to
forage and, of course, mankind has also killed off many of the natural
predators of deer.

The predator issue is true but deer have moved into suburban and even
urban areas because there is a lot of easy food there. They are simply
exploiting the food supply and in that sense they are 170 pound rats.
There are more deer in the US now than there were when the pilgrims
landed.
I damn near hit one on the Whitehurst Freeway in DC one night.
I am not sure that was not encroaching in their environment. They
were encroaching on ours.