Arrival and departure periods of Ruddy Turnstones from an especially favoured Namibian coastal locality
Info
Pages
92 – 94
Published
1 April 06
Authors
A. J. Williams
Correspondence
A. J. Williams
tony@adu.uct.ac.za
Western Cape Nature Conservation Board, and Avian Demography Unit, Department of Statistical Sciences, University of Cape Town, Rondebosch 7701, South Africa.
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Surveys show that the Patrysberg section of the Namibian coast is exceptionally important for Ruddy Turnstones and seasonally supports at peak 1.4 % of the estimated Siberia–sub-Saharan Africa flyway population. They also show that published generalisations about the time of arrival and departure of Ruddy Turnstones mask considerable inter-annual variations, which can largely be attributed to conditions on the breeding grounds. They also suggest that the Ruddy Turnstones that occur in Namibia during the non-breeding season might come from two geographically distinct breeding populations.