Scharf, William C., and Josef Kren. 2010. “Orchard Oriole (Icterus spurius).” 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/orcori doi: 10.2173/bna.255