In conducting a cost-benefit analysis of a program to conserve an endangered species, some value of conservation must be estimated Because one of the types of benefit is non-use, survey methods are employed. This paper reports on the application of two survey approaches to valuing endangered species in Victor... contingent valuation for Leadbeater's possum; and contingent rating for the eastern barred bandicoot. The merits of the two approaches are evaluated and suggestions made for future work.