Most Popular Books
- The Giant Canada Goose, Revised Edition
- Mineral Licks, Geophagy, and Biogeochemistry of North American Ungulates
- Characters of Age, Sex and Sexual Maturity in Canada Geese: 49; Volume 49
- 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
