Are squirrels edible ?

Yes they are. Many have hunted them to eat. There are times of the year
that you do not want to eat them as they could have parasites in them. As
the temperature turns cold they are fine to eat.

Deer are thought of as varmints the same as rats are to some farmers when
they eat their corn fields. Permits can be had to shoot them any time of
year (out of the normal hunting season ) if they become a nuisance.

Too many of any animal in the wrong area is bad and they must be eliminated
by killing or moving.