Stutterheim, Irene M.; Bezuidenhout, J. Dürr; Elliot, E.G.R.; Bigalke, R.D.
(Published by the Government Printer, Pretoria., 1988)
The feeding methods, activities and behaviour of red-billed and yellow-billed oxpeckers in captivity were
compared. Both species were found to be very similar with regard to feeding. The differences observed were a
greater ...