REFERENCES
- Blaker , D. 1966 . Notes on the Sandplovers Charadrius in Southern Africa . Ostrich , 37 : 95 – 102 .
- Blaker , D. 1967 . Spoonbills in the Western Cape . Ostrich , 38 : 157 – 8 .
- Blaker , D. and Winterbottom , J. M. 1968 . Bird Counts at Strandfontein Sewage Works and Riet Vlei, Cape Town . Ostrich , 39 (2)
- Rowan , M. K. 1963 . “ The Yellow-bill Duck, Anas undulata Dubois in Southern Africa ” . In Ostrich Suppl. 5
- Winterbottom , J. M. 1960 . Report on the Cape Bird Club Vlei Counts . Ostrich , 31 : 135 – 68 .
- Winterbottom , J. M. 1967a . The Relationships of some African Aquatic Avifaunas . Rev. Zool. Bot. Afr. , 75 : 149 – 55 .
- Winterbottom , J. M. 1967b . The Birds of Three Salt-Water Habitats in the South-West Cape . Ostrich , 38 : 148 – 54 .
- Winterbottom , J. M. “ A Check List of the Land and Fresh Water Birds of the Western Cape ” . In Ann. S. Afr. Mus (in the press)
- Winterbottom , J. M. and Skead , C. J. 1962 . A Preliminary Classification of Bird habitats for the Cape Province south of the Orange River . S. Afr. Avif. Ser. , : 3