Hanehwa

The Hanehwa are mythical creatures from the myths of the Seneca. They are human skin removed in a whole piece. Sorcerers use them as guardians because they do not sleep and shout three times to warn of an approaching stranger. 

Citations:

Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution. N.p., U.S. Government Printing Office, 1918.

Sullivan, Irene F., and Gill, Sam D.. Dictionary of Native American Mythology. United Kingdom, Oxford University Press, 1994.