Biolink have been engaged to address a range of threatened flora and fauna issues from the preparation of single-species management plans to the design of surveys specifically targeting one or more threatened species. Our intent in terms of survey is to understand fundamental considerations of species distribution along with robust density and associated estimates of population size. Threatened species that have been the focus of specialised survey design and associated effort include red-lored whistlers, black-breasted button-quails, brush-tailed rock wallabies, new holland mice, among others which include flora such as rare orchids.