Common sandpipers are migratory waders that breed beside fast-flowing upland rivers, with welfare linked to invertebrate food availability and disturbance.
Common sandpiper welfare at breeding sites depends on access to shingle banks for nesting and shallow gravel riffles rich in invertebrates. Acidified rivers have reduced invertebrate diversity and biomass, reducing food supply for adults and chicks. Human disturbance near nesting sites causes repeated flushing, increasing nest abandonment risk and energy expenditure. Flood management reducing gravel bank availability removes nest sites. Welfare-focused river management maintains diverse riffle habitat and minimises disturbance during breeding.