Dykstra, Cheryl R., Jeffrey L. Hays, and Scott T. Crocoll. 2008. “Red-shouldered Hawk (Buteo lineatus).” 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/reshaw doi: 10.2173/bna.107