Page:Autumn. From the Journal of Henry D. Thoreau.djvu/406

392 Bittern Cliff, I see the very remarkable track of an otter, made undoubtedly December 3d, when the snow-ice was mere slush. It had come up through a hole (now black ice) by the stem of a button-bush, and apparently pushed its way through the slush, as through snow on land, leaving a track eight inches wide, more or less, with the now frozen snow shoved up two inches above the general level on each side. Where the ice was firmer were seen only the track of its feet. At Bittern Cliff I saw where these creatures had been playing, sliding or fishing, apparently to-day, on the snow-covered rocks, on which for a rod upwards and as much in width, the snow was trodden and worn quite smooth, as if twenty had trodden and slid there for several hours. Their droppings are a mass of fishes scales and bones, loose, scaly, black masses. At this point, the black ice approached within three or four feet of the rock, and there was an open space just there a foot or two across, which appeared to have been kept open by them. I continued along on that side, and crossed on white ice just below the pond. The river was all tracked up with otters from Bittern Cliff upward. Sometimes one had trailed his tail edgewise, making a mark like the tail of a deer-mouse; sometimes they were moving fast, and there was an interval of five feet between the