1. J. Fair, E. Paul, J. Jones, "Guidelines to the use of wild birds in research." (2010)
2. "R: A language and environment for statistical computing." (2021)
3. "Recovery plan for Hawaiian waterbirds, second revision." (2011)
4. S. K. Skagen and H. D. Oman "Canadian Field-Naturalist." 110, "Dietary flexibility of shorebirds in the western hemisphere." 419 (1996)
5. J. M. Reed, C. S. Elphick, E. N. Ieno, et al. "Population Ecology." 53, "Long-term population trends of endangered Hawaiian waterbirds." 473 (2011)