Brigham, R. Mark, Janet Ng, Ray G. Poulin, and Scott D. Grindal. 2011. “Common Nighthawk (Chordeiles minor).” 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/comnig doi: 10.2173/bna.213