Abstract
Measurements, weights, and lipid levels of 85 Dunlins collected during two autumn seasons at the Ottenby Bird Observatory in South Sweden were analyzed. Males had significantly shorter wings and bills, and lower body weights than females. Fat depots ranged from about 5 to 30 per cent of total weight and accounted for the major variations in body weight. No correlation was found between body size and lipid level. The water content expressed as a percentage of fat-free weight was virtually constant within each year sample, irrespective of body size and lipid level. Significant differences in fat-free dry weights and water content between the two year samples were found. A formula for calculation of fat stores from total weight and wing length is presented. The results are compared to other work on waders and passerines.
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