McCrimmon, Donald A., Jr., John C. Ogden, and G. Thomas Bancroft. 2011. “Great Egret (Ardea alba).” 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/greegr doi: 10.2173/bna.570