We also saw and heard several times the red squirrel.... This, according to the Indian, is the only squirrel found in those woods, except a very few striped ones. It must have a solitary time in that dark evergreen forest, where there is so little life, seventy-five miles from a road as we had come. I wondered how he could call any particular tree there his home; and yet he would run up the stem of one out of the myriads, as if it were an old road to him. How can a hawk ever find him there? I fancied that he must be glad to see us, though he did seem to chide us.
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. "The Allegash and East Branch" (1864) in The Maine Woods (1864), in The Writings of Henry David Thoreau, vol. 3, p. 241, Houghton Mifflin (1906).