Gill, R.E., Jr., T. Piersma, G. Hufford, R. Servranckx and A. Riegen. 2005. Crossing the ultimate ecological barrier: Evidence for an 11 000-km-long nonstop flight from Alaska to New Zealand and Eastern Australia by Bar-tailed Godwits. Condor 107: 1-20. Download PDF
McCaffery, B.J. and R. Gill. 2001. Bar-tailed Godwit (Limosa lapponica). The Birds of North America, No. 581. The Birds of North America Inc., Philadelphia.
Morrison, R.I.G., R.E. Gill, Jr., B.A. Harrington, S. Skagen, G.W. Page, C.L. Gratto-Trevor & S.M. Haig. 2000. Population estimates of Nearctic shorebirds. Waterbirds 23: 337-352.
Gill, R.E. & B.J. McCaffery. 1999. Bar-tailed Godwits Limosa lapponica in Alaska: a population estimate from the staging grounds. Wader Study Group Bulletin 88: 49-54.
Piersma, T. & R.E. Gill, Jr. 1998. Guts don’t fly: Small digestive organs in obese Bar-tailed Godwits. Auk 115: 196-203.
Handel, C. & R. Gill. 1992. Communal roosting behavior of premigratory Dunlins (Calidris alpina). Auk 109:57-72.
Gill, R.E. & C.M. Handel. 1990. The importance of subarctic intertidal habitats to shorebirds: a study of the central Yukon-Kuskokwim Delta, Alaska. Condor 92: 709-725.
Gill, R.E., Jr. & C.M. Handel. 1981. Shorebirds of the eastern Bering Sea, pp. 719–738. In D. W. Hood and J. A. Calder (eds.) The eastern Bering Sea shelf: Oceanography and resources. Vol. 2. Univ. of Washington Press, Seattle.