SUMMARYSaunders, D. A. 1974. The function of displays in the breeding of the White-tailed Black Cockatoo. Emu: 74: 43–46.The displays of the White-tailed Black CockatooCalyptorhynchus baudinii latirostrisduring the breeding season are described. The few obvious displays are associated with agonistic situations, copulations and allopreening, although the pair are together for less than an hour most days once breeding has started. The lack of spectacular displays after incubation begins possibly reflects the strength and permanence of the pair-bond.