[3] Within a 5,800-ha triangle surrounded by predator-proof fencing,[4] the Australian Wildlife Conservancy planned to reintroduce at least six locally extirpated mammal species into the project's fenced area, including the greater bilby, western quoll, western barred bandicoot, brush-tailed bettong, bridled nailtail wallaby, and plains mouse.

[5] Given his proclivity for avoiding capture, the fox was nicknamed Rambo, after the character played by Sylvester Stallone in the 1982 film First Blood.

[6] He was easily identified in camera-trap photographs as the only remaining fox due to his tattered ears, which were damaged while he was killing the reserve's last feral cat.

Greater bilbies and bridled nailtail wallabies were instead reintroduced to a smaller 680-ha fenced area within the larger reserve, where they thrived.

[6] With Rambo's disappearance, the larger fenced reserve is now considered free of feral predators, allowing the reintroduction of threatened mammal species.