The Australian Wildlife Conservancy (AWC) is an Australian independent, nonprofit organisation, working to conserve threatened wildlife and ecosystems in Australia. This is principally achieved through the acquisition of extensive areas of land on which to establish conservation reserves ("sanctuaries") or by entering into partnerships with government, Indigenous groups, and private landholders to manage landscapes for effective conservation. AWC is the largest private owner and manager of land for conservation in Australia, currently managing 31 sanctuaries and partnership sites for wildlife conservation that cover over 6.5 million hectares of land across Australia. Australian Wildlife Conservancy operate under a unique model for conservation, using science (predominantly biodiversity survey work and targeted research) to inform on-ground land management, such as control of fire, feral animals and weeds. There is a strong focus on wildlife conservation: consequently, about 80% of all staff are based in the field, and as of 2021 83.5% of AWC's total expenditure is invested into conservation programs. Most funding comes from private support in the form of tax-deductible donations from the public, as well as some government grants for particular purposes, such as from the Australian government's National Reserve System Program. Australian Wildlife Conservancy was founded in response to Australia's mammal extinction crisis. Over a third of the world's extinctions from the last 400 years have been from Australia, and Australia has already lost 31 species of mammal. Many of these extinctions were entirely preventable with effective conservation measures in place. The 2016 State of the Environment report suggests that while Australia is incredibly rich in its biodiversity, despite legislation at all state and federal levels, it continues to suffer from unprecedented decline. In response, AWC protect a diverse array of habitats across a large network of sanctuaries, to protect 88% of Australia's bird species, 74% of mammals and 54% of reptile species, and 56% of amphibian species. In June 2007 AWC announced the establishment of a corporate partnership with Optus. In 2019, AWC partnered with Bullo River Station which covers over 160, 000 hectares in the north-west corner of Northern Territory, near the mouth of the Victoria River. This is a unique partnership between a working pastoral property and a conservation sanctuary to generate outcomes for both wildlife and cattle. The landscape here is typical of the Eastern Kimberley, dominated by Keep River sandstone formations with rocky gorges, lush riverside vegetation and expansive tropical savannah woodland. Inventory biodiversity surveys