Records were kept from May 1977 to April 1978 of Yellow-billed Oxpeckers Buphagus africanus and ungulates seen in the Whovi Wild Area of the Rhodes Matopos National Park. Host preference was determined by recording when oxpeckers were not in attendance. A distinct selection was shown for certain ungulate species, the order of preference being buffalo, white rhino, eland, zebra, giraffe, sable, wildebeest, impala and warthog. Ungulates apparently not utilized at all included waterbuck, duiker, steenbok, reedbuck, tsessebe and klipspringer.