Farnsworth, George, Gustavo Adolfo Londono, Judit Ungvari Martin, Kim C. Derrickson, and Randall Breitwisch. 2011. “Northern Mockingbird (Mimus polyglottos).” 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/normoc doi: 10.2173/bna.7