Renfrew, Rosalind B., Allan M. Strong, Noah G. Perlut, Stephen G. Martin, and Thomas A. Gavin. 2015. “Bobolink (Dolichonyx oryzivorus).” 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/boboli doi: 10.2173/bna.176