The breeding biology of the Common SandpiperActitis hypoleucosin the Peak District

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Abstract
The breeding biology of the common sandpiper was studied in the Peak District by finding nests and by color-ringing both chicks and adults. A sample of 98 nests produced a mean clutch size of 3.74, and a hatching success of 89%. Fledging success was difficult to estimate, but the results suggested a minimum of 24-35%; fledging took about 19 days, and occurred at a weight of about 40 g. Annual survival of the ringed adults was apparently 81%, and site fidelity from year to year was 85%. A simple modelling of the population (using calculated clutch size, hatching success and adult survival) suggested that it would suffice to maintain the breeding population.