It is the non-breeding migrants that populate the Angolan coast from September to January and densities along the Baia dos Tigres coast immediately north of the Kunene River mouth were reported as 349 birds in 175 km of sandy beach. The Kunene River mouth is the only locality where they are recorded regularly in the southern African sub-region and from where the first specimens in southern Africa were collected. Although only four birds were recorded in 12 years of wetlands monitoring - three at the Kunene River mouth and one at Ugabmond - several other records have been reported from the Kunene River mouth, including locks of between one and 26 birds from July 2002 to 2006, and one from Walvis Bay.