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Measurements
Linear
Females slightly larger than males (see Appendix 1). Geographic variation in bill and wing length (no data on tarsus available) on nonbreeding grounds: bill and wing length increased with latitude between California, Panama and Ecuador in males and females (Nebel 2006). See Systematic: geographic variation.
Mass
Considerable variation depending on location and timing of migration. Heaviest weights recorded at premigration staging sites. Leanest birds recorded on breeding grounds. See Appendix 2; also Migration: control and physiology.
Nebel, Silke and John M. Cooper. 2008. Least Sandpiper (Calidris minutilla), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/115
