Bachelor of Science in Education, University of Wisconsin, 1961; Master of Science, University of Illinois, 1963; Doctor of Philosophy, 1967.
Assistant professor Northern Arizona University, Flagstaff, 1966-1970. Associate professor, 1970-1976. Professor, 1976-1987.
Regents professor, since 1987.
Fellow American Association for the Advancement of Science, American Ornithologists Union, Animal Behavior Society, Cooper Ornithological Society (honorary), Wilson Ornithological Society (life).
Married Judith L. Peart Balda, July 25, 1987.