Mowbray, Thomas B., Craig R. Ely, James S. Sedinger, and Robert E. Trost. 2002. “Canada Goose (Branta canadensis).” The Birds of North America, edited by Paul G. Rodewald. Ithaca: Cornell Lab of Ornithology. Retrieved from the Birds of North America: https://birdsna.org/Species-Account/bna/species/cangoo doi: 10.2173/bna.682