Northern Prairie Wildlife Research Center
Kurz spent the summer of 1851 through the spring of 1852 at Fort Union for the purpose of painting Indians, trappers, and scenes of frontier life. Kurz was an excellent journalist and recorded detailed information of life around Fort Union. The majority of his time was spent at the Fort painting and working for his keep. However, he went on a couple of hunting excursions in this area and his notes include aspects of natural history not recorded by other observers including seeing magpies feeding on the backs of bison.
Kurz, R.F. 1937. Journal of Rudolph Friedrich Kurz; an account of his experiences among fur traders and American Indians on the Mississippi and upper Missouri Rivers during the years 1846-1852. Trans. by M. Jarrell. Edited by J.N.B. Hewitt. U.S.G.P.O. Bulletin 115 Smithsonian Institution, Bureau of American Ethnology. Washington DC.