Distribution, reproductive success, and population trend in the dunlin Calidris alpina schinzii on the Swedish west coast

Abstract

In 1989, the breeding population of dunlin in the provinces of Bohuslan and Halland was surveyed. Total population size was a maximum of 44 pairs. The number of breeding pairs has declined during the 1980s and the population has been restricted to about ten localities; 55% of the total population occurred at two sites. At two of the surveyed localities, hatching success varied considerably among years, reflecting variation in nest predation rate. On average, 0.8 and 1.0 fledglings per pair were produced at the two localities. -from Authors