Canada Geese of the Mississippi Flyway with Special Reference to an Illinois Flock. Illinois Natural History Survey Bulletin, Champaign, IL, v. 25, n. 1-6, p. 67–210, 1950. DOI: 10.21900/j.inhs.v25.184. Disponível em: https://iopn.library.illinois.edu/journals/inhs/article/view/184.. Acesso em: 18 may. 2024.