And that is another reason why the fawns must learn to obey a wiser head than their own. Till their little feet are educated, the mother must choose the way for them; and a wise fawn will jump squarely in her tracks. That explains also why deer, even after they are full grown, will often walk in single file, a half-dozen of them sometimes following a wise leader, stepping in his tracks and leaving but a single trail. It is partly, perhaps, to fool their old enemy, the wolf, and their new enemy, the man, by hiding the weakling's trail in the stride and hoof mark of a big buck; but it shows also the old habit, and the training which begins when the fawns first learn to follow the flag. After that second discovery I used to go in the afternoon to a point on the lake nearest the fawns' hiding-place, and wait in my canoe for the mother to come out and show me where she had left her little ones. As they grew, and the drain upon her increased from their feeding, she seemed always half starved. Waiting in my canoe I would hear the crackle of brush, as she trotted straight down to the lake almost heedlessly, and see her plunge through the fringe of bushes that bordered the water. With scarcely a look or a sniff to be sure the coast was clear, she would jump for the lily pads. Sometimes the canoe was in plain sight; but she gave no heed as she tore up the juicy buds and stems, and swallowed them with the appetite of a famished wolf. Then I would paddle away and, taking my direction from her trail as she came, hunt diligently for the fawns until I found them. This last happened only two or three times. The little ones were already wild; they had forgotten all about our first meeting, and when I showed myself, or cracked a twig too near them, they would promptly bolt into the brush. One always ran straight away, his white flag flying to show that he remembered his lesson; the other went off zigzag, stopping at every angle of his run to look back and question me with his eyes and ears. There was only one way in which such disobedience could end. I saw it plainly enough one afternoon, when, had I been one of the fierce prowlers of the wilderness, the little fellow's history would have stopped short under the paw of Upweekis, the shadowy lynx of the burned lands. It was late afternoon when I came over a ridge, following a deer path on my way to the lake, and looked down into a long, narrow valley filled with berry bushes, and with a few fire-blasted trees standing here and there to point out the perfect loneliness and desolation of the place.