This small Northwoods denizen makes a sound like the whistle of a boiling teakettle. It walks backwards by choice, and clouds of steam come out of its nostrils. Nothing else is known of its appearance as few have ever seen it.
Borges, J. L.; trans. Hurley, A. (2005) The Book of Imaginary Beings. Viking.
Brown, C. E. (1935) Paul Bunyan Natural History. Madison, Wisconsin.