Kinnear's pioneering work in the 1990s provided the Department of Environment and Conservation of Western Australia with an effective method of controlling the red foxes using meat and egg baits with “1080”, an environmentally-friendly toxin. His method proved successful and significantly contributed to the recovery of the western brush wallaby, along with several other animal populations. Currently there are about 100,000 animals. Due to this recovery, the western brush wallaby been moved from the IUCN Near Threatened list to the Least Concern list.