Most Popular Books
- The Giant Canada Goose, Revised Edition
- Mineral Licks, Geophagy, and Biogeochemistry of North American Ungulates
- The Biogeochemistry of Blue, Snow, and Ross' Geese (Special publication - Illinois Natural History Survey ; no. 1)
- The White-Cheeked Geese: Taxonomy, Ecophysiographic Relationships, Biogeography, and Evolutionary Considerations, Volume 1 (Volume 1)
- Preliminary Report on the Canada Geese of the Mississippi Flyway
