Ostrom, Peggy H., Wiley, Anne E., James, Helen F., Rossman, Sam, Walker, William A., Zipkin, Elise F., and Chikaraishi, Yoshito. 2017. "Broad-scale trophic shift in the pelagic North Pacific revealed by an oceanic seabird." Proceedings of the Royal Society B: Biological Sciences, 284, (1851). https://doi.org/10.1098/rspb.2016.2436.