J. Mark Jenkins: Natural History of the Guam Rail. The Condor, Vol. 81, No. 4 (Nov., 1979), pp. 404–408. doi:10.2307/1366967.
Beth Slikas, Storrs L Olson, Robert C Fleischer: (2002) Rapid, independent evolution of flightlessness in four species of Pacific Island rails (Rallidae): an analysis based on mitochondrial sequence data. Journal of Avian Biology 33 (1), 5?14. doi:10.1034/j.1600-048X.2002.330103.x.
David W. Steadman, Trevor H. Worthy, Atholl J. Anderson, and Richard Walter: New species and records of birds from prehistoric sites in Niue, Southwest Pacific. The Wilson Bulletin, Volume 112, Issue 2 (Juni 2000), S. 165–186. doi:10.1676/0043-5643(2000)112[0165:NSAROB]2.0.CO;2
Jeremy J. Kirchman and David W. Steadman: Rails (Aves: Rallidae: Gallirallus) from prehistoric sites in the Kingdom of Tonga, including a description of a new species. Proceedings of the Biological Society of Washington, Volume 118, Issue 2 (Juni 2005) doi:10.2988/0006-324X(2005)118[465:RARGFP]2.0.CO;2