. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Heft 4 29/1978 Birds of the South-Western Kalahari 419 and straight stretches of barren, deep sand, only negotiable with some measure of security by heavy duty, or fourwheel-driven vehicles. How- ever, even with these vehicles it is often safer to get off the road altogether to the side where the surface of the sand is covered with some grass and herbs. Having these forbidding features in mind, it was a wel- come opportunity to join a botanical collecting trip to th


. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. Heft 4 29/1978 Birds of the South-Western Kalahari 419 and straight stretches of barren, deep sand, only negotiable with some measure of security by heavy duty, or fourwheel-driven vehicles. How- ever, even with these vehicles it is often safer to get off the road altogether to the side where the surface of the sand is covered with some grass and herbs. Having these forbidding features in mind, it was a wel- come opportunity to join a botanical collecting trip to the South-West Kalahari, offered by Mr. Isaac Barnard of Geysdorp, in Western Transvaal to his friends in the Botanical Survey in Pretoria. I have some earlier experience with the bird life in the Western Transvaal (Farkas, 1962 and 1966), and have also made a few trips to the Kalahari Gemsbok Park and to South West Africa. Therefore, Mr. Barnard's kind invitation was a pleasant challenge to devote myself to the most intense field investiga- tions during the relatively short time I had at my disposal in order to get familiar with the birds of this remoted corner of Southern Africa. On the morning of the 27th December, 1976, we crossed at the border post Werda into the Republic of Botswana, and returned again to the Republic of South Africa, at the border post McCarthysrust on the 6th January, 1977. After having entered Botswana, our expedition followed the route shown in the map. The first day we moved up to Mabutsane pan. The next day we proceeded via Kang and Tshane to Hukuntsi; from there we turned northwesiwards, to the Masetleng pan, some 100 km north of the northern border of the Botswana Gemsbok National Park where we camped out for four days, exploring the area in various directions. On the evening of the 1st January we have had to return to Hukuntsi. There we spent another night and the next morning, after having taken in water and fuel supplies, we went off to camp at


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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology