Knopf, Fritz L., and Roger M. Evans. 2004. “American White Pelican (Pelecanus erythrorhynchos).” 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/amwpel doi: 10.2173/bna.57