The common sandpiper is a summer migrant that bobs constantly when at rest, breeding along upland streams and lake margins, with its welfare tied to the invertebrate communities of clear, clean waterways.
Common sandpiper welfare on breeding grounds depends on clean, invertebrate-rich waterways with accessible bank vegetation for nesting. Recreational disturbance along popular upland water bodies causes nest desertion during the May to July breeding season. Climate change increasing the frequency of flash floods destroys ground nests without warning. Agricultural runoff reducing aquatic invertebrate communities affects both breeding productivity and adult condition.