Abstract
Summary Pringle, J. S. & Cooper, J. 1975. The Palaearctic wader population of Langebaan Lagoon. Ostrich 46:213-218. Monthly counts of Palaearctic waders were made at high tide in three areas of Langebaan Lagoon, southwestern Cape, during 1973 and 1974. A total of sixteen species was observed. The five commonest species, in order of abundance, were Curlew Sandpiper Calidris ferruginea, Grey Plover Squalarola squatarola, Turnstone Arenaria interpres, Knot C. canutus and Sanderling C. alba. Together they formed 95,7% of the population counted. Waders arrived in September and departed in March and April. Overwintering populations of the commoner species were observed. Estimates of the total population size of the lagoon were 41 000–55 000 in summer and 10 500 in winter. These figures are of value for nature conservation and show that the lagoon is a wetland of international importance.
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