McCaffery, B.J. & R. Gill. 2001. Bar-tailed Godwit (Limosa lapponica). The Birds of North America, No. 581. The Birds of North America Inc., Philadelphia.
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.