Ramos, Alejandra G., Nunziata, Schyler O., Lance, Stacey L., Rodriguez, Cristina, Faircloth, Brant C., Gowaty, Patricia A., and Drummond, Hugh. 2014. "Interactive effects of male and female age on extra-pair paternity in a socially monogamous seabird." Behavioral Ecology and Sociobiology. 68 (10):1603–1609. https://doi.org/10.1007/s00265-014-1769-9