The main portion of this thesis was prepared as a paper for presentation at the 5th North American Crane Workshop held at the River Ranch Resort, Lake Wales, FL, on 22-25 February 1968. Since this paper is the 2nd phase of a study conducted in cooperation with R. Horwich of the International Crane Foundation, only a brief description of the isolation-rearing process he developed is given in the text to avoid duplication. A more complete description of the isolation-rearing is included in the appendicies. For additional information see Horwich et al. "Successful release of Sandhill Crane chicks hand-reared with artificial stimuli." published in the Proceedings of the 5th North American Crane Workshop.