Notes and Reflections on Books and Media
by Hannah Leitheiser
Our Vanishing Wild Life: Its Extermination and Preservation
William T. Hornaday
"The beautiful gray squirrel has clung to life in a few of our forests and wood-lots, long after most other wild mammals have disappeared; but throughout at least ninety-five per cent, of its original area, it is now extinct. During the past thirty years I have roamed the woods of my state in several widely separated localities,—the Adirondacks, Catskills, Berkshires, western New York and elsewhere, and in all that time I have seen only three wild gray squirrels outside of city parks.
Except over a very small total area, the gray squirrel is already gone from the wild fauna of New York State!"
"The gray squirrel is fast becoming extinct in Minnesota." -- Our Vanishing Wildlife, Horniday, 1913
I...don't know how accurate that is. They are so common now that it's hard to imagine near extinction. Not sure.